CVE-2025-31029
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the WordPress replyMail plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. It affects all WordPress sites using replyMail plugin versions up to and including 1.2.0. The vulnerability requires user interaction but can lead to session hijacking, credential theft, or website defacement.
💻 Affected Systems
- WordPress replyMail 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 steal administrator credentials, take over the WordPress site, install backdoors, or redirect visitors to malicious sites, potentially compromising the entire website and user data.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies, perform actions on behalf of authenticated users, or deface parts of the website visible to other users.
If Mitigated
With proper input validation and output encoding, the malicious scripts would be rendered harmless as text rather than executable code.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited and weaponization is likely given the widespread use of WordPress plugins.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: >1.2.0
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find replyMail plugin. 4. Click 'Update Now' if update is available. 5. If no update is available, deactivate and delete the plugin, then install the latest version from WordPress repository.
🔧 Temporary Workarounds
Disable replyMail plugin
allTemporarily disable the vulnerable plugin until patched version is available
wp plugin deactivate replymail
Implement Content Security Policy
allAdd CSP headers to mitigate XSS impact by restricting script execution
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to wp-config.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");
🧯 If You Can't Patch
- Disable the replyMail plugin immediately
- Implement web application firewall (WAF) rules to block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins → replyMail version. If version is 1.2.0 or lower, you are vulnerable.Check Version:
wp plugin list --name=replymail --field=versionVerify Fix Applied:
After updating, verify replyMail plugin version is greater than 1.2.0 in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to replyMail endpoints
- JavaScript payloads in form submissions or URL parameters
- Multiple failed XSS attempts in web server logs
Network Indicators:
- Malicious script tags in HTTP requests to replyMail endpoints
- Unusual outbound connections from WordPress site after form submissions
SIEM Query:
source="web_server_logs" AND (uri="*replymail*" OR uri="*wp-admin/admin-ajax.php*") AND (message="*<script>*" OR message="*javascript:*" OR message="*onload=*" OR message="*onerror=*")