CVE-2025-11521
📋 TL;DR
The Astra Security Suite WordPress plugin has an arbitrary file upload vulnerability that allows unauthenticated attackers to upload malicious files to the server. This affects all versions up to 0.2 and could lead to remote code execution. Any WordPress site using the vulnerable plugin is at risk.
💻 Affected Systems
- Astra Security Suite – Firewall & Malware Scan
⚠️ 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
Complete server compromise through remote code execution, leading to data theft, malware deployment, or site defacement.
Likely Case
Attackers upload web shells or backdoors to maintain persistent access and execute arbitrary commands.
If Mitigated
File uploads blocked or contained, preventing code execution but potentially allowing denial of service through disk consumption.
🎯 Exploit Status
Exploitation requires no authentication and uses predictable keys with insufficient URL validation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 0.2
Vendor Advisory: https://wordpress.org/plugins/getastra/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Astra Security Suite. 4. Click 'Update Now' if available, or delete and install latest version from WordPress repository.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily deactivate the vulnerable plugin until patched.
wp plugin deactivate getastra
Block Plugin Directory
linuxUse web server configuration to block access to plugin files.
# Apache: <Location /wp-content/plugins/getastra>\n Deny from all\n</Location>
# Nginx: location ~ /wp-content/plugins/getastra/ { deny all; }
🧯 If You Can't Patch
- Remove the Astra Security Suite plugin completely from the WordPress installation.
- Implement web application firewall rules to block file upload attempts to the plugin endpoints.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for Astra Security Suite version 0.2 or lower.Check Version:
wp plugin get getastra --field=versionVerify Fix Applied:
Confirm plugin version is higher than 0.2 in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /wp-content/plugins/getastra/ endpoints
- File upload attempts with .zip or executable extensions
- HTTP 200 responses to unexpected plugin file paths
Network Indicators:
- Traffic to /wp-content/plugins/getastra/ from unauthenticated sources
- Suspicious file uploads via POST requests
SIEM Query:
source="web_logs" AND uri_path="/wp-content/plugins/getastra/*" AND (http_method="POST" OR status=200)