CVE-2025-26924
📋 TL;DR
This vulnerability allows attackers to inject malicious code through shortcodes in the Ohio Extra WordPress plugin, potentially leading to remote code execution. It affects all WordPress sites using Ohio Extra plugin versions up to 3.4.7.
💻 Affected Systems
- Ohio Extra 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
Full site compromise with attacker gaining shell access, installing backdoors, defacing websites, or stealing sensitive data.
Likely Case
Website defacement, malware injection, or creation of admin accounts for persistent access.
If Mitigated
Limited impact if input validation and output escaping are properly implemented elsewhere.
🎯 Exploit Status
Exploitation requires contributor-level access or higher. The vulnerability is in shortcode handling where user input is not properly sanitized before execution.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.4.8 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Ohio Extra plugin. 4. Click 'Update Now' if available. 5. If no update appears, manually download version 3.4.8+ from WordPress repository and replace files.
🔧 Temporary Workarounds
Disable Ohio Extra Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate ohio-extra
Restrict User Roles
allLimit contributor and author access to only trusted users
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block suspicious shortcode patterns
- Monitor for unusual post/page creation or modification by contributor-level users
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for Ohio Extra version. If version is 3.4.7 or lower, you are vulnerable.Check Version:
wp plugin get ohio-extra --field=versionVerify Fix Applied:
After update, verify Ohio Extra plugin shows version 3.4.8 or higher in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual shortcode patterns in post/page content
- Posts/pages created/modified by contributor users containing PHP or script tags
- Unexpected file writes in wp-content directory
Network Indicators:
- HTTP requests with malicious shortcode payloads in POST data
- Outbound connections from WordPress to suspicious domains
SIEM Query:
source="wordpress.log" AND ("[ohio-extra]" OR "shortcode") AND ("eval" OR "system" OR "exec" OR "shell_exec")