WordPress Vulnerability Report: September 2021, Part 5

Vulnerable plugins and themes are the #1 reason WordPress websites get hacked. The weekly WordPress Vulnerability Report powered by WPScan covers recent WordPress plugin, theme, and core vulnerabilities, and what to do if you run one of the vulnerable plugins or themes on your website.

Each vulnerability will have a severity rating of Low, Medium, High, or Critical. Responsible disclosure and reporting of vulnerabilities is an integral part of keeping the WordPress community safe.

As one of the largest WordPress Vulnerability Reports to date, please share this post with your friends to help get the word out and make WordPress safer for everyone.

Several WordPress core security issues were disclosed and fixed. WordPress 5.8.1 was released as a security and maintenance release. As a best practice, always be sure to run the latest version of WordPress core!

In this section, the latest WordPress plugin vulnerabilities have been disclosed. Each plugin listing includes the type of vulnerability, the version number if patched, and the severity rating.

1. Comments – wpDiscuz

Plugin: Comments – wpDiscuz
Vulnerability: Admin+ Stored Cross-Site Scripting
Patched in Version: 7.3.2
Severity Score: Low

2. Page Generator

Plugin: Page Generator 
Vulnerability: Reflected Cross-Site Scripting
Patched in Version: 1.5.9
Severity Score: High

3. WordPress to Hootsuite

Plugin: WordPress to Hootsuite
Vulnerability: Reflected Cross-Site Scripting
Patched in Version: 1.3.9
Severity Score: High

4. WordPress to Buffer

Plugin: WordPress to Buffer
Vulnerability: Reflected Cross-Site Scripting
Patched in Version: 3.7.5
Severity Score: High

5. Gutenberg PDF Viewer Block

Plugin: Gutenberg PDF Viewer Block 
Vulnerability: Contributor+ Stored Cross-Site Scripting
Patched in Version: 1.0.1
Severity Score: Medium

6. YITH WooCommerce Product Add-Ons

Plugin: YITH WooCommerce Product Add-Ons
Vulnerability: Authenticated Local File Inclusion
Patched in Version: 2.1.0
Severity Score: Medium

Plugin: YITH WooCommerce Product Add-Ons
Vulnerability: Reflected Cross-Site Scripting
Patched in Version: 2.1.0
Severity Score: High

7. To Top

Plugin: To Top  
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 2.3
Severity Score: Medium

7. Header Enhancement

Plugin: Header Enhancement
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 1.5
Severity Score: Medium

8. Generate Child Theme

Plugin: Generate Child Theme
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 1.6
Severity Score: Medium

9. Essential Content Types

Plugin: Essential Content Types
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 1.9
Severity Score: Medium

9. Catch Web Tools

Plugin: Catch Web Tools 
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 2.7
Severity Score: Medium

10. Essential Widgets 

Plugin: Software License Manager 
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 1.9
Severity Score: Medium

11. Catch Under Construction

Plugin: Catch Under Construction 
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 1.4
Severity Score: Medium

12. Catch Themes Demo Import

Plugin: Catch Themes Demo Import
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 1.6
Severity Score: Medium

13. Catch Sticky Menu

Plugin: Catch Sticky Menu 
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 1.7
Severity Score: Medium

14. Catch Scroll Progress Bar

Plugin: Catch Scroll Progress Bar
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 1.6
Severity Score: Medium

15. Social Gallery and Widget

Plugin: Social Gallery and Widget
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 2.3
Severity Score: Medium

16. Catch Infinite Scroll

Plugin: Catch Infinite Scroll
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 1.9
Severity Score: Medium

17. Catch Import Export

Plugin: Catch Import Export 
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 1.9
Severity Score: Medium

18. Catch Gallery

Plugin: Catch Gallery 
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 1.7
Severity Score: Medium

19. Catch Duplicate Switcher

Plugin: Catch Duplicate Switcher 
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 1.6
Severity Score: Medium

20. Catch Breadcrumb

Plugin: Catch Breadcrumb
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 1.7
Severity Score: Medium

21. Catch IDs 

Plugin: Catch IDs 
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 2.4
Severity Score: Medium

22. Tutor LMS

Plugin: Tutor LMS 
Vulnerability: Multiple Admin+ Stored Cross-Site Scripting
Patched in Version: 1.9.9
Severity Score: Low

23. WP Import Export Lite

Plugin: WP Import Export Lite 
Vulnerability: Subscriber+ Extensions Update
Patched in Version: 3.9.5
Severity Score: Medium

Plugin: WP Import Export Lite 
Vulnerability: Subscriber+ Arbitrary Blog Options Update
Patched in Version: 3.9.5
Severity Score: Medium

24. One User Avatar

Plugin: One User Avatar
Vulnerability: Contributor+ Stored Cross-Site Scripting
Patched in Version: 2.3.7
Severity Score: Medium

Plugin: One User Avatar
Vulnerability: Avatar Update via CSRF
Patched in Version: 2.3.7
Severity Score: Medium

25. Scroll Baner

Plugin: Scroll Baner 
Vulnerability: CSRF to RCE
Patched in Version: no known fix
Severity Score: Critical

26. WP Ticket

Plugin: WP Ticket
Vulnerability: Admin+ Stored Cross-Site Scripting
Patched in Version: 5.10.4
Severity Score: Low

27. GamePress

Plugin: GamePress 
Vulnerability: Reflected Cross-Site Scripting
Patched in Version: no known fix
Severity Score: High

28. Wechat Reward

Plugin: Wechat Reward 
Vulnerability: CSRF to Stored Cross-Site Scripting
Patched in Version: no known fix
Severity Score: High

29. Sociable

Plugin: Sociable 
Vulnerability: Admin+ Stored Cross-Site Scripting
Patched in Version: no known fix
Severity Score: Low

30. BetterDocs

Plugin: BetterDocs 
Vulnerability: Reflected Cross-Site Scripting
Patched in Version: 1.9.2
Severity Score: High

31. Multiple WooCommerce Add-Ons – multiple plugins

Plugin: Product Filter for WooCommerce 
Vulnerability: Low Priv Arbitrary Blog Options Update/Access/Deletion & Plugin’s Settings Update/Export/Import
Patched in Version: 8.2.0
Severity Score: High

Plugin: improved-variable-product-attributes 
Vulnerability: Low Priv Arbitrary Blog Options Update/Access/Deletion & Plugin’s Settings Update/Export/Import
Patched in Version: 5.3.0
Severity Score: High

Plugin: improved-sale-badges 
Vulnerability: Low Priv Arbitrary Blog Options Update/Access/Deletion & Plugin’s Settings Update/Export/Import
Patched in Version: 4.4.0
Severity Score: High

Plugin: share-print-pdf-woocommerce 
Vulnerability: Low Priv Arbitrary Blog Options Update/Access/Deletion & Plugin’s Settings Update/Export/Import
Patched in Version: 2.8.0
Severity Score: High

Plugin: product-loops
Vulnerability: Low Priv Arbitrary Blog Options Update/Access/Deletion & Plugin’s Settings Update/Export/Import
Patched in Version: 1.7.0
Severity Score: High

Plugin: XforWooCommerce 
Vulnerability: Low Priv Arbitrary Blog Options Update/Access/Deletion & Plugin’s Settings Update/Export/Import
Patched in Version: 1.7.0
Severity Score: High

Plugin: package-quantity-xforwc 
Vulnerability: Low Priv Arbitrary Blog Options Update/Access/Deletion & Plugin’s Settings Update/Export/Import
Patched in Version: 1.2.0
Severity Score: High

Plugin: price-commander-xforwc 
Vulnerability: Low Priv Arbitrary Blog Options Update/Access/Deletion & Plugin’s Settings Update/Export/Import
Patched in Version: 1.3.0
Severity Score: High

Plugin: spam-control-xforwc 
Vulnerability: Low Priv Arbitrary Blog Options Update/Access/Deletion & Plugin’s Settings Update/Export/Import
Patched in Version: 1.5.0
Severity Score: High

Plugin: add-tabs-xforwc 
Vulnerability: Low Priv Arbitrary Blog Options Update/Access/Deletion & Plugin’s Settings Update/Export/Import
Patched in Version: 1.5.0
Severity Score: High

32. WP Cookie Choice

Plugin: WP Cookie Choice
Vulnerability: CSRF to Stored Cross-Site Scripting
Patched in Version: no known fix
Severity Score: High

33. Easy Twitter Feed

Plugin: Easy Twitter Feed 
Vulnerability: Contributor+ Stored Cross-Site Scripting
Patched in Version: 1.2
Severity Score: Medium

34. Html5 Audio Player

Plugin: Html5 Audio Player 
Vulnerability: Contributor+ Stored Cross-Site Scripting
Patched in Version: 2.1.3
Severity Score: Medium

35. Polo Video Gallery

Plugin: Polo Video Gallery 
Vulnerability: Contributor+ Stored Cross-Site Scripting
Patched in Version: no known fix – plugin closed
Severity Score: Medium

36. StreamCast

Plugin: StreamCast  
Vulnerability: Contributor+ Stored Cross-Site Scripting
Patched in Version: 2.1.1
Severity Score: Medium

37. PDF Light Viewer

Plugin: PDF Light Viewer 
Vulnerability: Authenticated Command Injection
Patched in Version: 1.4.12
Severity Score: Low

38. MainWP Child Reports 

Plugin: MainWP Child Reports 
Vulnerability: Admin+ SQL Injection
Patched in Version: 2.0.8
Severity Score: Medium

39. LearnPress

Plugin: LearnPress
Vulnerability: Unauthorised Plugin’s Setting Change
Patched in Version: 4.1.3.1
Severity Score: Low

Plugin: LearnPress
Vulnerability: Multiple Admin+ Stored Cross-Site Scripting
Patched in Version: 4.1.3.1
Severity Score: Low

40. OptinMonster

Plugin: OptinMonster 
Vulnerability: Reflected Cross-Site Scripting (XSS)
Patched in Version: 2.6.1
Severity Score: Medium

41. Frontend Uploader

Plugin: Frontend Uploader
Vulnerability: Unauthenticated Stored Cross-Site Scripting
Patched in Version: no known fix – plugin closed
Severity Score: Medium

42. Allow REL= and HTML in Author Bios

Plugin: Allow REL= and HTML in Author Bios – WordPress plugin | WordPress.org
Vulnerability: Author+ Stored Cross-Site Scripting
Patched in Version: no known fix – plugin closed
Severity Score: Medium

43. WP HTML Author Bio

Plugin: WP HTML Author Bio
Vulnerability: Author+ Stored Cross-Site Scripting
Patched in Version: no known fix – plugin closed
Severity Score: Medium

44. jQuery Reply to Comment 

Plugin: jQuery Reply to Comment 
Vulnerability: CSRF to Stored Cross-Site Scripting
Patched in Version: no known fix – plugin closed
Severity Score: High

45. Video Gallery – Vimeo and YouTube Gallery

Plugin: Video Gallery – Vimeo and YouTube Gallery
Vulnerability: Admin+ Stored Cross-Site Scripting
Patched in Version: no known fix – plugin closed
Severity Score: Low

46. Request a Quote

Plugin: Request a Quote 
Vulnerability: Admin+ Stored Cross-Site Scripting
Patched in Version: 2.3.5
Severity Score: Low

47. St Daily Tip

Plugin: St Daily Tip
Vulnerability: CSRF to Stored Cross-Site Scripting
Patched in Version: no known fix – plugin closed
Severity Score: High

48. Advance Search 

Plugin: Advance Search 
Vulnerability: Reflected Cross-Site Scripting
Patched in Version: 1.1.3
Severity Score: Medium

49. WP Mega Menu

Plugin: WP Mega Menu
Vulnerability: Subscriber+ Arbitrary Post Access
Patched in Version: 1.4.1
Severity Score: Medium

Plugin: WP Mega Menu
Vulnerability: Unauthenticated Arbitrary Post Access
Patched in Version: 1.4.0
Severity Score: High

50. Cherry Plugin 

Plugin: Cherry Plugin 
Vulnerability: Unauthenticated Arbitrary File Upload and Download
Patched in Version: 1.2.7
Severity Score: Critical

51. WP Job Manager

Plugin: WP Job Manager – WordPress plugin | WordPress.org 
Vulnerability: Phar Deserialization
Patched in Version: 1.31.3
Severity Score:

Plugin: WP Job Manager – WordPress plugin | WordPress.org 
Vulnerability: Unauthenticated Object Injection
Patched in Version: 1.29.3
Severity Score: Medium

Plugin: WP Job Manager – WordPress plugin | WordPress.org 
Vulnerability: Unauthenticated Arbitrary File Upload
Patched in Version: 1.26.2
Severity Score: Critical

Plugin: WP Job Manager – WordPress plugin | WordPress.org 
Vulnerability: Reflected Cross-Site Scripting (XSS)
Patched in Version: 1.23.8
Severity Score: High

52. WP Mobile Detector

Plugin: WP Mobile Detector
Vulnerability: Unauthenticated Arbitrary File Upload
Patched in Version: 3.6
Severity Score: Critical

53. Telefication

Plugin: Telefication
Vulnerability: Open Relay & Server-Side Request Forgery
Patched in Version: no known fix – plugin closed
Severity Score: Medium

54. Game Server Status

Plugin: Game Server Status 
Vulnerability: Contributor+ SQL Injection
Patched in Version: no known fix – plugin closed
Severity Score: High

Plugin: Game Server Status 
Vulnerability: Admin+ SQL Injection
Patched in Version: no known fix – plugin closed
Severity Score: Medium

Plugin: Game Server Status 
Vulnerability: Admin+ Stored Cross-Site Scripting
Patched in Version: no known fix – plugin closed
Severity Score: Low

55. Responsive WordPress Slider

Plugin: Responsive WordPress Slider
Vulnerability: Subscriber+ Stored Cross-Site Scripting
Patched in Version: no known fix – plugin closed
Severity Score: Critical

Plugin: Responsive WordPress Slider
Vulnerability: Reflected Cross-Site Scripting
Patched in Version: no known fix – plugin closed
Severity Score: Critical

56. Fetch Tweets 

Plugin: Fetch Tweets 
Vulnerability: Reflected Cross-Site Scripting
Patched in Version: no known fix – plugin closed
Severity Score: High

57. WooCommerce

Plugin: WooCommerce 
Vulnerability: Analytics Report Leaks
Patched in Version: 5.7.0
Severity Score: Medium

58. WooCommerce Admin

Plugin: WooCommerce Admin 
Vulnerability: Analytics Report Leaks
Patched in Version: 2.6.0
Severity Score: Medium

59. YT Player

Plugin: YT Player
Vulnerability: Contributor+ Stored Cross-Site Scripting
Patched in Version: 1.4
Severity Score: Medium

60. Cookie Bar

Plugin: Cookie Bar 
Vulnerability: Admin+ Stored Cross-Site Scripting
Patched in Version: no known fix – plugin closed
Severity Score: Low

61. WP User Manager 

Plugin: WP User Manager 
Vulnerability: Arbitrary User Password Reset to Account Compromise
Patched in Version: 2.6.3
Severity Score: High

62. Easy Media Download

Plugin: Easy Media Download
Vulnerability: Contributor+ Stored Cross-Site Scripting
Patched in Version: 1.1.7
Severity Score: Medium

63. Ninja Forms

Plugin: Ninja Forms 
Vulnerability: Unprotected REST-API to Sensitive Information Disclosure
Patched in Version: 3.5.8
Severity Score: Medium

Plugin: Ninja Forms 
Vulnerability: Unprotected REST-API to Email Injection
Patched in Version: 3.5.8
Severity Score: Medium

Plugin: Ninja Forms 
Vulnerability: Admin+ Stored Cross-Site Scripting
Patched in Version: 3.5.8.2
Severity Score: Low

64. 3DPrint Lite

Plugin: 3DPrint Lite
Vulnerability: Unauthenticated Arbitrary File Upload
Patched in Version: no known fix – plugin closed
Severity Score: Critical

65. iQ Block Country 

Plugin: iQ Block Country
Vulnerability: Admin+ Stored Cross-Site Scripting
Patched in Version: 1.2.12
Severity Score: Low

66. WordPress Popular Posts

Plugin: WordPress Popular Posts 
Vulnerability: Admin+ Stored Cross-Site Scripting
Patched in Version: 5.3.4
Severity Score: Low

67. Custom Dashboard & Login Page

Plugin: Custom Dashboard & Login Page
Vulnerability: Admin+ Stored Cross-Site Scripting
Patched in Version: 6.9.2
Severity Score: Low

68. Bug Library 

Plugin: Bug Library 
Vulnerability: Reflected Cross-Site Scripting
Patched in Version: 2.0.4
Severity Score: Medium

You might be wondering why a vulnerability would be disclosed if it gives hackers an exploit to attack. Well, it is very common for a security researcher to find and privately report the vulnerability to the software developer.

With responsible disclosure, the researcher’s initial report is made privately to the developers of the company that owns the software, but with an agreement that the full details will be published once a patch has been made available. For significant security vulnerabilities, there may be a slight delay in disclosing the vulnerability to give more people time to patch.

The security researcher may provide a deadline for the software developer to respond to the report or to provide a patch. If this deadline is not met, then the researcher may publicly disclose the vulnerability to put pressure on the developer to issue a patch.

Publicly disclosing a vulnerability and seemingly introducing a Zero-Day vulnerability–a type of vulnerability that has no patch and is being exploited in the wild– may seem counterproductive. But, it is the only leverage that a researcher has to pressure the developer to patch the vulnerability.

If a hacker were to discover the vulnerability, they could quietly use the Exploit and cause damage to the end-user(this is you), while the software developer remains content on leaving the vulnerability unpatched. Google’s Project Zero has similar guidelines when it comes to disclosing vulnerabilities. They publish the full details of the vulnerability after 90 days whether or not the vulnerability has been patched.

As you can see from this report, lots of new WordPress plugin and theme vulnerabilities are disclosed each week. We know it can be difficult to stay on top of every reported vulnerability disclosure, so the iThemes Security Pro plugin makes it easy to make sure your site isn’t running a theme, plugin or WordPress core version with a known vulnerability.

1. Turn on the iThemes Security Pro Site Scanner

The iThemes Security Pro plugin’s Site Scanner scans for the #1 reason WordPress sites get hacked: outdated plugins and themes with known vulnerabilities. The Site Scanner checks your site for known vulnerabilities and automatically applies a patch if one is available.

To enable the Site Scan on new installs, navigate to the Site Check tab on the Features menu inside the plugin and click the toggle to enable the Site Scan.

To trigger a manual Site Scan, click the Scan Now button on the Site Scan Security Dashboard card.

If the Site Scan detects a vulnerability, click the vulnerability link to view the details page.

On the Site Scan vulnerability page, you will see if there is a fix available for the vulnerability. If there is a patch available, you can click the Update Plugin button to apply the fix on your website.

2. Turn on Version Management to Auto Update if Fixes Vulnerability

The Version Management feature in iThemes Security Pro integrates with the Site Scan to protect your site when outdated software is not updated quickly enough. Even the strongest security measures will fail if you are running vulnerable software on your website. These settings help protect your site with options to update to new versions automatically if a known vulnerability exists and a patch is available.

From the Settings page in iThemes Security Pro, navigate to the Features screen. Click the Site Check tab. From here, use the toggle to enable Version Management. Using the settings gear, you can configure even more settings, including how you want iThemes Security Pro to handle updates to WordPress, plugins, themes, and additional protection.

Make sure to select Auto Update if it Fixes a Vulnerability box so that iThemes Security Pro will automatically update a plugin or theme if it fixes a vulnerability that was found by the Site Scanner.

3. Get an Email Alert When iThemes Security Pro Finds a Known Vulnerability On Your Site

Once you’ve enabled Site Scan Scheduling, head to the Notification Center settings of the plugin. On this screen, scroll to the Site Scan Results section.

Click the box to enable the notification email and then click the Save Settings button.

Now, during any scheduled site scans, you’ll get an email if iThemes Security Pro discovers any known vulnerabilities. The email will look something like this.

Get iThemes Security Pro and Rest a Little Easier Tonight

iThemes Security Pro, our WordPress security plugin, offers 50+ ways to secure and protect your website from common WordPress security vulnerabilities. With WordPress, two-factor authentication, brute force protection, strong password enforcement, and more, you can add extra layers of security to your website.

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