CVE-2025-69033

6.5 MEDIUM

📋 TL;DR

This DOM-based Cross-Site Scripting (XSS) vulnerability in the Blog Filter WordPress plugin allows attackers to inject malicious scripts into web pages viewed by other users. The vulnerability affects all WordPress sites using Blog Filter plugin versions 1.7.3 and earlier. Attackers can steal session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users.

💻 Affected Systems

Products:
  • A WP Life Blog Filter WordPress Plugin
Versions: n/a through <= 1.7.3
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations using vulnerable plugin versions are affected regardless of configuration.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers steal administrator session cookies, gain full control of the WordPress site, install backdoors, deface the site, or steal sensitive user data.

🟠

Likely Case

Attackers steal user session cookies, redirect visitors to phishing sites, or perform limited actions as authenticated users.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts are neutralized before execution, preventing any exploitation.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

DOM-based XSS vulnerabilities are commonly exploited and require minimal technical skill. The vulnerability is publicly documented with technical details.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.7.4 or later

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/blog-filter/vulnerability/wordpress-blog-filter-plugin-1-7-3-cross-site-scripting-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Blog Filter' plugin. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 1.7.4+ from WordPress repository and replace plugin files.

🔧 Temporary Workarounds

Disable Blog Filter Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate blog-filter

Implement Content Security Policy

all

Add CSP headers to restrict script execution sources

Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self'";

🧯 If You Can't Patch

  • Implement Web Application Firewall (WAF) rules to block XSS payloads
  • Disable user input fields that trigger the DOM-based XSS vulnerability

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Installed Plugins → Blog Filter version. If version is 1.7.3 or earlier, you are vulnerable.

Check Version:

wp plugin get blog-filter --field=version

Verify Fix Applied:

After updating, verify Blog Filter plugin shows version 1.7.4 or later in WordPress admin plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unusual JavaScript payloads in URL parameters
  • Multiple failed XSS attempts in web server logs
  • Suspicious user-agent strings containing script tags

Network Indicators:

  • HTTP requests with script tags in query parameters
  • Unusual redirect patterns from the affected pages

SIEM Query:

source="web_server" AND (url="*<script>*" OR url="*javascript:*" OR url="*onerror=*" OR url="*onload=*")

🔗 References

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