CVE-2025-57959
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the WordPress 'Slightly troublesome permalink' plugin allows attackers to inject malicious scripts into web pages. When users view affected pages, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- WordPress Slightly troublesome permalink plugin
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers steal administrator session cookies, gain full control of WordPress site, deface content, install backdoors, or pivot to internal networks.
Likely Case
Attackers steal user session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users.
If Mitigated
Script execution is blocked by Content Security Policy (CSP) or browser XSS filters, limiting impact to specific page contexts.
🎯 Exploit Status
Requires ability to create or modify permalinks/URLs through the plugin interface. Likely requires contributor-level access or higher.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.2.0
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Slightly troublesome permalink' plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete plugin immediately.
🔧 Temporary Workarounds
Disable vulnerable plugin
allDeactivate the plugin to remove the attack surface while awaiting patch
wp plugin deactivate slightly-troublesome-permalink
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to wp-config.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");
🧯 If You Can't Patch
- Remove plugin entirely and use alternative permalink solutions
- Restrict plugin access to trusted administrators only using role-based access controls
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for 'Slightly troublesome permalink' version ≤1.2.0Check Version:
wp plugin get slightly-troublesome-permalink --field=versionVerify Fix Applied:
Verify plugin version is >1.2.0 or plugin is completely removed📡 Detection & Monitoring
Log Indicators:
- Unusual permalink modifications
- Multiple failed login attempts after plugin usage
- Suspicious JavaScript in URL parameters
Network Indicators:
- Outbound connections to unknown domains after visiting specific permalinks
- Unexpected POST requests with script payloads
SIEM Query:
source="wordpress.log" AND "slightly-troublesome-permalink" AND ("update" OR "modify" OR "inject")