How the CVE Works:
CVE-2025-22759 is a critical stored Cross-site Scripting (XSS) vulnerability in BoldGrid Post and Page Builder, a visual drag-and-drop editor for WordPress. The flaw arises due to improper neutralization of user-supplied input during web page generation. Attackers can inject malicious JavaScript code into posts or pages created using the editor. When other users, such as administrators or visitors, view the compromised content, the malicious script executes in their browsers. This allows attackers to steal session cookies, redirect users to malicious sites, or perform actions on behalf of the victim. The vulnerability affects versions up to and including 1.27.4 of the plugin.
DailyCVE Form:
Platform: WordPress
Version: 1.27.4 and earlier
Vulnerability: Stored XSS
Severity: Critical
Date: 01/15/2025
What Undercode Say:
Exploitation:
1. Exploit Code Example:
<script>alert('XSS');</script>
Attackers can inject this payload into post or page content using the BoldGrid editor.
2. Exploit via HTTP Request:
POST /wp-admin/post.php HTTP/1.1
Host: example.com
Content-Type: application/x-www-form-urlencoded
Content-Length: 123
post_=Exploit&content=<script>alert('XSS');</script>
3. Impact:
- Steal admin session cookies.
- Redirect users to phishing sites.
- Perform unauthorized actions on the WordPress site.
Protection:
1. Patch:
Update BoldGrid Post and Page Builder to the latest version beyond 1.27.4.
2. Input Sanitization:
Ensure all user inputs are sanitized and validated before rendering.
3. Content Security Policy (CSP):
Implement a strict CSP to mitigate XSS risks:
Content-Security-Policy: default-src 'self'; script-src 'self'; object-src 'none';
4. WordPress Hardening:
- Disable file editing in WordPress:
define('DISALLOW_FILE_EDIT', true); - Use security plugins like Wordfence or iThemes Security.
5. Monitoring:
Regularly monitor logs for suspicious activity:
tail -f /var/log/apache2/access.log
6. Testing:
Use tools like OWASP ZAP or Burp Suite to test for XSS vulnerabilities.
7. Backup:
Regularly backup the WordPress site to recover from potential attacks:
wp db export backup.sql
By following these steps, users can mitigate the risks associated with CVE-2025-22759 and protect their WordPress installations from exploitation.
References:
Reported By: https://nvd.nist.gov/vuln/detail/CVE-2025-22759
Extra Source Hub:
Undercode
