CVE-2025-27356
📋 TL;DR
This CVE describes a missing authorization vulnerability in the WordPress Sticky Header On Scroll plugin that allows attackers to bypass access controls. It affects all WordPress sites running the plugin version 1.0 or earlier. The vulnerability enables unauthorized access to functionality that should be restricted.
💻 Affected Systems
- WordPress Sticky Header On Scroll 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 plugin settings, inject malicious content, or potentially escalate privileges to compromise the entire WordPress site.
Likely Case
Unauthorized users could modify sticky header settings, change site appearance, or access administrative functions they shouldn't have permissions for.
If Mitigated
With proper access controls and authentication checks, the vulnerability would be prevented from being exploited.
🎯 Exploit Status
Missing authorization vulnerabilities typically require minimal technical skill to exploit once the attack vector is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.1 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find 'Sticky Header On Scroll'
4. Click 'Update Now' if available
5. If no update available, deactivate and delete the plugin
6. Install the latest version from WordPress repository
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily deactivate the Sticky Header On Scroll plugin until patched version is available
wp plugin deactivate sticky-header-on-scroll
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block unauthorized access to plugin endpoints
- Restrict access to WordPress admin interface using IP whitelisting or additional authentication layers
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for 'Sticky Header On Scroll' version 1.0 or earlierCheck Version:
wp plugin get sticky-header-on-scroll --field=versionVerify Fix Applied:
Verify plugin version is 1.0.1 or later in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to /wp-admin/admin-ajax.php with plugin-specific actions
- Unexpected changes to sticky header settings
Network Indicators:
- HTTP requests to plugin endpoints without proper authentication headers
- Unusual POST requests to admin-ajax.php with plugin parameters
SIEM Query:
source="wordpress.log" AND (uri_path="/wp-admin/admin-ajax.php" AND action CONTAINS "sticky_header") AND user="unauthenticated"