WordPress Vulnerability Report: April 2021, Part 1
New WordPress plugin and vulnerabilities were disclosed during the first week of April. This post provides a report of recent WordPress plugin, theme, and core vulnerabilities and what to do if you run one of the vulnerable plugins or themes on your website. The WordPress Vulnerability Roundup is divided into three different categories: WordPress core, WordPress plugins, and WordPress themes.
New WordPress plugin and vulnerabilities were disclosed during the first week of April. This post provides a report of recent WordPress plugin, theme, and core vulnerabilities and what to do if you run one of the vulnerable plugins or themes on your website.
The WordPress Vulnerability Roundup is divided into three different categories: WordPress core, WordPress plugins, and WordPress themes. Each vulnerability includes information on which version you should be running, so be sure to update!
Each vulnerability will also have a severity rating of Low, Medium, High, or Critical. The severity ratings are based on a Common Vulnerability Scoring System designed to help you know how to measure the severity of a vulnerability.
WordPress Core Vulnerabilities
The latest version of WordPress is currently 5.7. Make sure all your websites are running the latest version of WordPress core.
WordPress Plugin Vulnerabilities
This section covers vulnerabilities in WordPress plugins with instructions on whether to update or remove the vulnerable plugin.
1. Controlled Admin Access
Vulnerability: Improper Access Control to Privilege Escalation
Patched in Version: 1.5.6
Severity: High – CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2. Advanced Booking Calendar
Vulnerability: Authenticated Reflected Cross-Site Scripting
Patched in Version: 1.6.8
Severity: High – CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
3. Cooked Pro
Vulnerability: Unauthenticated Reflected Cross-Site Scripting
Patched in Version: 1.7.5.6
Severity: Medium – CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4. SecuPress Free & Pro
Vulnerability: Unauthenticated Arbitrary IP Ban
Patched in Version: 2.0
Severity: Medium – CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5. Ivory Search
Vulnerability: Reflected Cross-Site Scripting
Patched in Version: 4.6.1
Severity: Medium – CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L
6. Goto – Tour & Travel
Vulnerability: Unauthenticated Reflected Cross-Site Scripting
Patched in Version: 2.0
Severity: Medium – CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
7. Virtual Robots.txt
Vulnerability: Authenticated Stored Cross-Site Scripting
Patched in Version: 1.10
Severity: Medium – CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
8. Realteo
Vulnerability: Unauthenticated Reflected Cross-Site Scripting
Patched in Version: 1.2.4
Severity: High – CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Vulnerability: Arbitrary Property Deletion via IDOR
Patched in Version: 1.2.4
Severity: High – CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
9. Business Hours Pro
Vulnerability: Unauthenticated Arbitrary File Upload to RCE
Patched in Version: No known fix
Severity: Critical – CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
10. Erident Custom Login and Dashboard
Vulnerability: Authenticated Stored Cross-Site Scripting
Patched in Version: 3.5.9
Severity: Medium – CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
11. Pie Register
Vulnerability: Reflected Cross-Site Scripting
Patched in Version: 3.7.0.1
Severity: High – CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
12. Tutor LMS
Vulnerability: Authenticated Local File Inclusion
Patched in Version: 1.8.8
Severity: Medium – CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
WordPress Theme Vulnerabilities
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