CVE-2024-35773
📋 TL;DR
This CSRF vulnerability in the WordPress Comment Reply Email plugin allows attackers to trick authenticated administrators into performing actions without their consent, leading to stored XSS. It affects all WordPress sites using the Comment Reply Email plugin version 1.3 and earlier. Attackers can inject malicious scripts that execute when other users view affected pages.
💻 Affected Systems
- WordPress Comment Reply Email 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 compromise administrator accounts, inject persistent malware into websites, steal session cookies, redirect users to malicious sites, or deface the website.
Likely Case
Attackers inject malicious JavaScript that steals administrator cookies or session tokens, potentially leading to site takeover or data theft.
If Mitigated
With proper CSRF protections and input validation, the attack would fail or have minimal impact limited to non-persistent effects.
🎯 Exploit Status
Exploitation requires social engineering to trick an authenticated administrator, but the technical execution is straightforward once the victim interacts with the malicious content.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.4 or later
Vendor Advisory: https://patchstack.com/database/vulnerability/comment-reply-email/wordpress-comment-reply-email-plugin-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 'Comment Reply Email' plugin. 4. Click 'Update Now' if available, or manually update to version 1.4+. 5. Verify the plugin is active and functioning.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily disable the Comment Reply Email plugin until patched
wp plugin deactivate comment-reply-email
Implement CSRF tokens manually
allAdd CSRF protection to plugin forms if you have development capabilities
🧯 If You Can't Patch
- Restrict administrator access to trusted networks only
- Implement web application firewall (WAF) rules to block CSRF and XSS patterns
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for 'Comment Reply Email' version 1.3 or earlierCheck Version:
wp plugin get comment-reply-email --field=versionVerify Fix Applied:
Confirm plugin version is 1.4 or later in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to wp-admin/admin-ajax.php with comment-related actions
- Multiple failed CSRF token validations
Network Indicators:
- Unexpected JavaScript injection in comment/reply sections
- External script loads from untrusted domains in comment areas
SIEM Query:
source="wordpress.log" AND ("comment-reply-email" OR "admin-ajax.php") AND ("action=cre_process" OR "XSS")