CVE-2025-26759
📋 TL;DR
This CSRF vulnerability in the Content Snippet Manager WordPress plugin allows attackers to trick authenticated administrators into executing malicious actions without their consent. Successful exploitation leads to stored cross-site scripting (XSS), enabling attackers to inject malicious scripts that execute in users' browsers. All WordPress sites using Content Snippet Manager versions up to 1.1.5 are affected.
💻 Affected Systems
- Content Snippet Manager 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 administrator credentials, hijack user sessions, deface websites, or redirect visitors to malicious sites.
Likely Case
Attackers would inject malicious JavaScript to steal session cookies or perform actions as authenticated users, potentially gaining administrative access to the WordPress site.
If Mitigated
With proper CSRF protections and content security policies, the attack would fail or have limited impact even if attempted.
🎯 Exploit Status
Exploitation requires social engineering to trick an administrator into clicking a malicious link while authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.1.5
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Content Snippet Manager. 4. Click 'Update Now' if available. 5. If no update is available, deactivate and delete the plugin.
🔧 Temporary Workarounds
Implement CSRF Tokens
WordPressAdd CSRF protection to all plugin forms and actions
Requires custom code modification: Add wp_nonce_field() to forms and verify with wp_verify_nonce()
Content Security Policy
allImplement CSP headers to restrict script execution sources
Add to .htaccess: Header set Content-Security-Policy "script-src 'self'"
Or use WordPress CSP plugin
🧯 If You Can't Patch
- Deactivate and remove the Content Snippet Manager plugin immediately
- Implement web application firewall (WAF) rules to block CSRF attempts and XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for Content Snippet Manager version 1.1.5 or earlierCheck Version:
wp plugin list --name=content-snippet-manager --field=versionVerify Fix Applied:
Verify Content Snippet Manager is either updated to version after 1.1.5 or completely removed from the site📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to wp-admin/admin-ajax.php or plugin-specific endpoints
- Multiple failed nonce verification attempts in WordPress debug logs
Network Indicators:
- Requests with suspicious JavaScript payloads in parameters
- Cross-origin requests to admin endpoints without proper referrer headers
SIEM Query:
source="wordpress.log" AND ("admin-ajax.php" OR "content-snippet-manager") AND ("nonce" OR "csrf" OR "xss")