CVE-2025-25156
📋 TL;DR
This CSRF vulnerability in the WordPress Quote Comments plugin allows attackers to trick authenticated administrators into executing malicious actions, leading to stored cross-site scripting (XSS). Attackers can inject malicious scripts that execute in victims' browsers when viewing compromised content. All WordPress sites using Quote Comments plugin versions up to 2.2.1 are affected.
💻 Affected Systems
- WordPress Quote Comments 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 persistent malicious scripts that steal administrator credentials, hijack sessions, deface websites, or redirect users to malicious sites whenever vulnerable pages are viewed.
Likely Case
Attackers create fake admin interfaces or forms that trick logged-in administrators into unknowingly submitting malicious content, resulting in persistent XSS payloads being stored on the site.
If Mitigated
With proper CSRF protections and content sanitization, the attack chain is broken and no malicious scripts can be injected or executed.
🎯 Exploit Status
Exploitation requires social engineering to trick authenticated administrators into clicking malicious links or visiting compromised pages.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.2.2 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Quote Comments' and check if update is available. 4. Click 'Update Now' if version 2.2.2+ is available. 5. Alternatively, download latest version from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Implement CSRF Protection
wordpressAdd nonce verification to all Quote Comments plugin forms and actions
Add wp_nonce_field() to forms and verify with wp_verify_nonce() in processing scripts
Content Sanitization
wordpressImplement output escaping for all user-generated content displayed by the plugin
Use esc_html(), esc_attr(), or wp_kses() functions when outputting user content
🧯 If You Can't Patch
- Disable or remove the Quote Comments plugin entirely
- Implement web application firewall (WAF) rules to block CSRF attempts and XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins, find Quote Comments and verify version is 2.2.1 or earlierCheck Version:
wp plugin list --name='quote-comments' --field=versionVerify Fix Applied:
Confirm Quote Comments plugin version is 2.2.2 or later in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Multiple failed CSRF token validations
- Unexpected content submissions via Quote Comments forms
- Administrator accounts submitting unusual comment-related requests
Network Indicators:
- POST requests to quote-comments endpoints without proper referrer headers
- Requests containing suspicious JavaScript payloads in comment data
SIEM Query:
source="wordpress.log" AND ("quote-comments" OR "quote_comments") AND ("csrf" OR "nonce_failure" OR "malicious_script")