CVE-2025-31559
📋 TL;DR
This DOM-based Cross-Site Scripting (XSS) vulnerability in Caspio Bridge Custom Database Applications allows attackers to inject malicious scripts into web pages viewed by other users. The vulnerability affects WordPress sites using the Custom Database Applications by Caspio plugin. Attackers can steal session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users.
💻 Affected Systems
- Custom Database Applications by Caspio
⚠️ 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 steal administrator session cookies, gain full control of the WordPress site, and potentially compromise the entire web server or database.
Likely Case
Attackers steal user session cookies, perform unauthorized actions on behalf of users, or redirect users to phishing/malware sites.
If Mitigated
With proper input validation and output encoding, malicious scripts are neutralized before execution, preventing exploitation.
🎯 Exploit Status
DOM-based XSS typically requires user interaction (clicking a malicious link) but doesn't require authentication. Exploitation is straightforward once the attack vector is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.2 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Custom Database Applications by Caspio'. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 2.2+ from WordPress plugin repository and manually update.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate custom-database-applications-by-caspio
Content Security Policy
allImplement strict CSP headers to prevent script execution from untrusted sources
Add 'Content-Security-Policy: script-src 'self'' to web server configuration
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) rules to block XSS payloads
- Enable input validation and output encoding at application level
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Custom Database Applications by Caspio version numberCheck Version:
wp plugin get custom-database-applications-by-caspio --field=versionVerify Fix Applied:
Verify plugin version is 2.2 or higher in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual POST/GET requests with script tags or JavaScript payloads
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests containing <script>, javascript:, or encoded XSS payloads
SIEM Query:
source="web_server_logs" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")