CVE-2026-23547
📋 TL;DR
This CVE describes a Missing Authorization vulnerability in CMSMasters Content Composer WordPress plugin that allows attackers to bypass access controls. It affects all versions up to and including 2.5.8, potentially enabling unauthorized content manipulation or privilege escalation.
💻 Affected Systems
- CMSMasters Content Composer 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 modify website content, inject malicious code, or gain administrative privileges to compromise the entire WordPress site.
Likely Case
Unauthorized users could modify posts, pages, or plugin settings they shouldn't have access to, leading to content defacement or SEO spam injection.
If Mitigated
With proper access controls and authentication mechanisms, the vulnerability would be prevented from being exploited.
🎯 Exploit Status
Exploitation requires some level of access but bypasses authorization checks. No public exploit code identified yet.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 2.5.8
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'CMSMasters Content Composer'. 4. Click 'Update Now' if update available. 5. Alternatively, download latest version from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate cmsmasters-content-composer
Restrict Access
allImplement strict access controls and user role validation
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to detect and block unauthorized access attempts
- Enable detailed logging and monitoring for suspicious content modification activities
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins → CMSMasters Content Composer versionCheck Version:
wp plugin get cmsmasters-content-composer --field=versionVerify Fix Applied:
Verify plugin version is greater than 2.5.8 and test authorization controls📡 Detection & Monitoring
Log Indicators:
- Unauthorized POST requests to plugin endpoints
- Unexpected content modifications by non-admin users
- Failed authorization attempts
Network Indicators:
- Unusual traffic patterns to /wp-content/plugins/cmsmasters-content-composer/ endpoints
SIEM Query:
source="wordpress.log" AND ("cmsmasters-content-composer" OR "content-composer") AND (status=200 AND user_role!=admin)