CVE-2025-49990
📋 TL;DR
This CVE describes a missing authorization vulnerability in the ContentStudio WordPress plugin that allows attackers to access functionality not properly constrained by access control lists. It affects all versions up to 1.3.4, potentially enabling unauthorized users to perform actions reserved for authenticated users. WordPress sites using vulnerable versions of the ContentStudio plugin are affected.
💻 Affected Systems
- ContentStudio 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 content, access sensitive data, or perform administrative actions without proper authentication, potentially leading to site compromise or data leakage.
Likely Case
Unauthorized users accessing content management functions, potentially modifying posts, pages, or plugin settings they shouldn't have access to.
If Mitigated
With proper network segmentation and least privilege access, impact would be limited to the specific WordPress instance.
🎯 Exploit Status
CWE-862 vulnerabilities typically involve simple HTTP requests to endpoints without proper authorization checks.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 1.3.4
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find ContentStudio plugin. 4. Click 'Update Now' if update available. 5. Alternatively, download latest version from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Disable ContentStudio Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate contentstudio
Web Application Firewall Rule
allBlock access to ContentStudio endpoints
# Add WAF rule to block /wp-content/plugins/contentstudio/* paths
🧯 If You Can't Patch
- Implement strict network access controls to limit who can access the WordPress admin interface
- Enable WordPress security plugins that monitor for unauthorized access attempts and block suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for ContentStudio version. If version is 1.3.4 or lower, system is vulnerable.Check Version:
wp plugin get contentstudio --field=versionVerify Fix Applied:
Verify ContentStudio plugin version is higher than 1.3.4 in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST/GET requests to /wp-content/plugins/contentstudio/ endpoints from unauthenticated users
- Multiple 403 errors followed by 200 success codes for same endpoint
Network Indicators:
- HTTP requests to ContentStudio API endpoints without proper authentication headers
- Unusual traffic patterns to WordPress admin paths
SIEM Query:
source="wordpress.log" AND (uri_path="/wp-content/plugins/contentstudio/*" AND (http_status=200 OR http_status=403)) AND NOT user_agent="WordPress/*"