CVE-2025-26545
📋 TL;DR
This CSRF vulnerability in the WordPress plugin 'Related Posts Line-up-Exactly by Milliard' allows attackers to trick authenticated administrators into performing unintended actions, leading to stored cross-site scripting (XSS). Attackers can inject malicious scripts that execute in users' browsers when they visit affected pages. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- Related Posts Line-up-Exactly by Milliard WordPress 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 could inject persistent malicious scripts that steal session cookies, redirect users to phishing sites, or perform actions as authenticated users, potentially compromising the entire WordPress site.
Likely Case
Attackers create fake admin interfaces or links that trick administrators into executing actions that inject malicious JavaScript into posts or pages, affecting visitors who view those pages.
If Mitigated
With proper CSRF tokens and input validation, the vulnerability would be prevented, limiting attackers to only exploiting other unrelated vulnerabilities.
🎯 Exploit Status
Exploitation requires tricking an authenticated administrator into clicking a malicious link or visiting a crafted page. No public proof-of-concept code is known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 0.0.22
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Related Posts Line-up-Exactly by Milliard'. 4. Check if an update is available. 5. If yes, click 'Update Now'. 6. If no update is available, consider disabling or removing the plugin.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until a patch can be applied.
wp plugin deactivate related-posts-line-up-exactly-by-milliard
Implement CSRF Protection
allAdd custom CSRF tokens to plugin forms if you have development capabilities.
🧯 If You Can't Patch
- Disable the 'Related Posts Line-up-Exactly by Milliard' plugin immediately.
- Implement a web application firewall (WAF) rule to block suspicious requests targeting the plugin endpoints.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for 'Related Posts Line-up-Exactly by Milliard' and verify version is 0.0.22 or earlier.Check Version:
wp plugin get related-posts-line-up-exactly-by-milliard --field=versionVerify Fix Applied:
After updating, verify the plugin version is higher than 0.0.22 in WordPress admin panel > Plugins > Installed Plugins.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to wp-admin/admin-ajax.php or plugin-specific endpoints from unexpected referrers.
- Multiple failed CSRF token validations in WordPress debug logs.
Network Indicators:
- HTTP requests with suspicious parameters targeting the plugin's admin functions without proper referrer headers.
SIEM Query:
source="wordpress.log" AND ("related-posts-line-up-exactly" OR "admin-ajax.php") AND (POST AND NOT "_wpnonce")