CVE-2025-30521
📋 TL;DR
A Cross-Site Request Forgery (CSRF) vulnerability in the GP Back To Top WordPress plugin allows attackers to trick authenticated administrators into performing unintended actions. This affects all WordPress sites using GP Back To Top plugin versions up to 3.0. Attackers could modify plugin settings without the admin's knowledge.
💻 Affected Systems
- GP Back To Top 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
An attacker could change plugin settings to redirect users to malicious sites, inject malicious code, or disrupt site functionality by modifying critical plugin configurations.
Likely Case
Attackers modify plugin settings to insert malicious JavaScript, redirect users to phishing sites, or degrade user experience by breaking the back-to-top functionality.
If Mitigated
With proper CSRF protections and user awareness, the risk is minimal as it requires the victim to be logged in and tricked into clicking a malicious link.
🎯 Exploit Status
Exploitation requires the victim to be authenticated as an administrator and tricked into clicking a malicious link or visiting a crafted page.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.0.1 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find GP Back To Top plugin. 4. Click 'Update Now' if available. 5. Alternatively, download version 3.0.1+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched.
wp plugin deactivate gp-back-to-top
Add CSRF Protection
allImplement custom CSRF tokens in plugin files if you have development access.
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block CSRF attempts targeting the plugin endpoints.
- Educate administrators about CSRF risks and safe browsing practices to avoid clicking suspicious links while logged in.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for GP Back To Top version. If version is 3.0 or earlier, you are vulnerable.Check Version:
wp plugin get gp-back-to-top --field=versionVerify Fix Applied:
After updating, verify plugin version shows 3.0.1 or higher in WordPress admin plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to wp-admin/admin-ajax.php or plugin-specific endpoints from unexpected referrers
- Multiple failed CSRF token validations in WordPress debug logs
Network Indicators:
- HTTP requests to plugin endpoints without proper referrer headers or CSRF tokens
- Suspicious redirects originating from the back-to-top functionality
SIEM Query:
source="wordpress.log" AND ("gp-back-to-top" OR "admin-ajax.php") AND (POST AND NOT referer="*your-domain*"))