CVE-2025-30561

7.1 HIGH

📋 TL;DR

This CSRF vulnerability in the CAS Maestro WordPress plugin allows attackers to trick authenticated administrators into performing unintended actions, which can lead to stored cross-site scripting (XSS). Attackers can inject malicious scripts that execute in victims' browsers when they visit compromised pages. All WordPress sites using CAS Maestro versions up to 1.1.3 are affected.

💻 Affected Systems

Products:
  • CAS Maestro WordPress Plugin
Versions: n/a through 1.1.3
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All default configurations of affected versions are vulnerable. The plugin must be installed and activated on a WordPress site.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could compromise administrator accounts, inject persistent malicious scripts across the site, steal session cookies, redirect users to malicious sites, or deface the website.

🟠

Likely Case

Attackers would typically inject malicious JavaScript to steal session cookies or perform actions on behalf of authenticated users, potentially leading to account takeover or data theft.

🟢

If Mitigated

With proper CSRF tokens and input validation, the vulnerability would be prevented, maintaining normal plugin functionality without security risks.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires tricking an authenticated administrator into clicking a malicious link or visiting a compromised page. The CSRF leads to stored XSS, which persists across visits.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 1.1.3 (check vendor for specific fixed version)

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/cas-maestro/vulnerability/wordpress-cas-maestro-plugin-1-1-3-csrf-to-stored-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find CAS Maestro and check for updates. 4. If update is available, click 'Update Now'. 5. Alternatively, download the latest version from the WordPress plugin repository and manually update.

🔧 Temporary Workarounds

Implement CSRF Protection

WordPress

Add CSRF tokens to all forms and actions in the plugin to prevent unauthorized requests.

Requires custom code modification: Add nonce verification to plugin PHP files using wp_nonce_field() and wp_verify_nonce().

Disable Plugin

WordPress CLI

Temporarily disable the CAS Maestro plugin until patched.

wp plugin deactivate cas-maestro

🧯 If You Can't Patch

  • Implement a Web Application Firewall (WAF) with CSRF and XSS protection rules.
  • Restrict admin access to trusted IP addresses only and enforce strong authentication.

🔍 How to Verify

Check if Vulnerable:

Check the plugin version in WordPress admin under Plugins > Installed Plugins. If CAS Maestro is version 1.1.3 or earlier, it is vulnerable.

Check Version:

wp plugin get cas-maestro --field=version

Verify Fix Applied:

After updating, verify the plugin version is above 1.1.3. Test admin forms to ensure CSRF tokens are present and functional.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to CAS Maestro admin endpoints without referrer headers or CSRF tokens
  • Multiple failed nonce verifications in WordPress debug logs

Network Indicators:

  • Unexpected JavaScript injections in page responses from the plugin
  • Cross-origin requests to CAS Maestro endpoints

SIEM Query:

source="wordpress.log" AND "cas-maestro" AND ("nonce_failure" OR "invalid_nonce")

🔗 References

📤 Share & Export