CVE-2025-27009
📋 TL;DR
A Cross-Site Request Forgery (CSRF) vulnerability in the WordPress My auctions allegro plugin allows attackers to perform stored cross-site scripting (XSS) attacks. This affects WordPress administrators who can be tricked into executing malicious actions, potentially compromising their sites. The vulnerability exists in versions up to and including 3.6.20.
💻 Affected Systems
- WordPress My auctions allegro 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 malicious scripts that steal administrator credentials, deface websites, or redirect visitors to malicious sites, potentially leading to complete site takeover.
Likely Case
Attackers would typically use this to inject advertising scripts, cryptocurrency miners, or credential-stealing payloads that affect all visitors to the compromised WordPress site.
If Mitigated
With proper CSRF protections and input validation, the vulnerability would be prevented, though the underlying code flaws would still exist.
🎯 Exploit Status
Exploitation requires tricking an authenticated administrator into clicking a malicious link or visiting a compromised page. CSRF to stored XSS is a common attack chain.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.6.21 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'My auctions allegro' and click 'Update Now'. 4. Verify update to version 3.6.21 or higher.
🔧 Temporary Workarounds
Temporary Plugin Deactivation
allDisable the vulnerable plugin until patched
wp plugin deactivate my-auctions-allegro
CSRF Protection Middleware
allImplement additional CSRF protection at web server level
🧯 If You Can't Patch
- Disable the My auctions allegro plugin completely
- Implement strict Content Security Policy (CSP) headers to mitigate XSS impact
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > My auctions allegro > Version. If version is 3.6.20 or lower, you are vulnerable.Check Version:
wp plugin get my-auctions-allegro --field=versionVerify Fix Applied:
After updating, verify plugin version shows 3.6.21 or higher in WordPress admin plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to wp-admin/admin-ajax.php with plugin-specific actions
- Unexpected plugin file modifications
Network Indicators:
- Suspicious referrer headers in admin requests
- Unexpected JavaScript payloads in plugin data
SIEM Query:
source="wordpress" AND (uri_path="*/wp-admin/admin-ajax.php*" AND query_string="*action=my_auctions_allegro*")