CVE-2025-31573
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the PeproDev CF7 Database WordPress plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the injected scripts, the attacker can steal session cookies, redirect users, or perform actions on their behalf. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- PeproDev CF7 Database WordPress 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 session cookies, take over WordPress sites, install backdoors, deface websites, or redirect visitors to malicious sites.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies, potentially compromising user accounts and performing unauthorized actions.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited. Attackers need to submit malicious input through Contact Form 7 forms that gets stored and displayed to other users.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.0.1 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'PeproDev CF7 Database' and click 'Update Now'. 4. Verify plugin version is 2.0.1 or higher.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate pepro-cf7-database
Input Sanitization
allAdd custom input validation to Contact Form 7 forms
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Disable the PeproDev CF7 Database plugin and use alternative form data storage solutions
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for 'PeproDev CF7 Database' version 2.0.0 or earlierCheck Version:
wp plugin list --name='pepro-cf7-database' --field=versionVerify Fix Applied:
Verify plugin version is 2.0.1 or higher in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual form submissions with script tags or JavaScript code
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests containing malicious script payloads to form submission endpoints
SIEM Query:
source="web_server_logs" AND ("<script" OR "javascript:" OR "onload=" OR "onerror=") AND uri_path="/wp-admin/admin-ajax.php"