CVE-2025-13558
📋 TL;DR
This vulnerability in the Blog2Social WordPress plugin allows authenticated users with Subscriber-level access or higher to trash arbitrary posts without proper authorization. It affects all WordPress sites running Blog2Social plugin versions up to and including 8.7.0. The missing capability check enables unauthorized post modification.
💻 Affected Systems
- Blog2Social: Social Media Auto Post & Scheduler 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
Malicious authenticated users could systematically trash all posts on a WordPress site, causing complete content loss and site disruption.
Likely Case
Low-privilege users could delete specific posts they shouldn't have access to, causing content loss and potential business impact.
If Mitigated
With proper user access controls and monitoring, impact would be limited to isolated post deletions that could be restored from backups.
🎯 Exploit Status
Exploitation requires authenticated access but is simple to execute. Public proof-of-concept exists in research reports.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 8.7.1 or later
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3401934/blog2social/trunk
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Blog2Social plugin. 4. Click 'Update Now' if available. 5. Alternatively, download version 8.7.1+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily deactivate Blog2Social plugin until patched
wp plugin deactivate blog2social
Restrict user registration
allDisable new user registration to prevent new subscriber accounts
Update WordPress Settings → General → Membership to uncheck 'Anyone can register'
🧯 If You Can't Patch
- Implement strict user role management and review all subscriber-level accounts
- Enable post revision tracking and frequent backups to restore trashed content
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins → Blog2Social version. If version is 8.7.0 or lower, you are vulnerable.Check Version:
wp plugin get blog2social --field=versionVerify Fix Applied:
Verify Blog2Social plugin version is 8.7.1 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- WordPress audit logs showing post status changes to 'trash' by subscriber-level users
- Apache/Nginx logs with POST requests to /wp-admin/admin-ajax.php with action=deleteUserCcDraftPost
Network Indicators:
- HTTP POST requests to admin-ajax.php with deleteUserCcDraftPost action from non-admin users
SIEM Query:
source="wordpress" action="trash_post" user_role="subscriber" OR source="web_server" uri_path="/wp-admin/admin-ajax.php" method="POST" params.action="deleteUserCcDraftPost"🔗 References
- https://plugins.trac.wordpress.org/browser/blog2social/tags/8.7.0/includes/Ajax/Post.php#L1858
- https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php?rev=3401934#L1867
- https://research.cleantalk.org/cve-2025-13558/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/61b590f5-7854-42f7-b5e2-e6feaaf03a73?source=cve
