CVE-2025-39418

7.1 HIGH

📋 TL;DR

A Cross-Site Request Forgery (CSRF) vulnerability in the ajayver RSS Manager WordPress plugin allows attackers to inject malicious scripts that become stored cross-site scripting (XSS). This affects WordPress sites using RSS Manager plugin versions up to 0.06, potentially compromising site visitors and administrators.

💻 Affected Systems

Products:
  • WordPress RSS Manager plugin by ajayver
Versions: 0.06 and earlier
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with the vulnerable plugin activated. Attack requires tricking authenticated users (typically administrators) into performing actions.

⚠️ 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 could inject persistent malicious scripts that steal administrator credentials, deface websites, redirect visitors to malicious sites, or install backdoors on the WordPress installation.

🟠

Likely Case

Attackers trick administrators into clicking malicious links that inject JavaScript payloads, leading to session hijacking, content manipulation, or malware distribution to site visitors.

🟢

If Mitigated

With proper CSRF tokens and input validation, the attack vector is blocked, preventing unauthorized script injection even if administrators are tricked into clicking malicious links.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires social engineering to trick authenticated users. The CSRF-to-stored-XSS chain makes this particularly dangerous as payloads persist.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 0.07 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/rss-manager/vulnerability/wordpress-rss-manager-plugin-0-06-csrf-to-stored-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'RSS Manager' and update to version 0.07 or later. 4. If update not available, deactivate and delete the plugin immediately.

🔧 Temporary Workarounds

Disable RSS Manager Plugin

all

Temporarily disable the vulnerable plugin until patched version is available

wp plugin deactivate rss-manager

Implement CSRF Protection Headers

linux

Add security headers to WordPress to help mitigate CSRF attacks

Add to .htaccess: Header set X-Frame-Options "DENY"
Add to .htaccess: Header set Content-Security-Policy "frame-ancestors 'none'"

🧯 If You Can't Patch

  • Remove RSS Manager plugin completely and use alternative RSS management solutions
  • Implement strict Content Security Policy (CSP) headers to block inline script execution

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for RSS Manager version. If version is 0.06 or earlier, you are vulnerable.

Check Version:

wp plugin get rss-manager --field=version

Verify Fix Applied:

After updating, verify RSS Manager plugin shows version 0.07 or later in WordPress admin plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to RSS Manager admin endpoints
  • Multiple failed CSRF token validations
  • Unexpected JavaScript injection in RSS feed content

Network Indicators:

  • HTTP requests with suspicious parameters to /wp-admin/admin.php?page=rss-manager
  • Unexpected iframe or script tags in RSS feed responses

SIEM Query:

source="wordpress" AND (uri_path="/wp-admin/admin.php" AND uri_query="page=rss-manager") AND http_method="POST"

🔗 References

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