CVE-2025-31747
📋 TL;DR
A DOM-based cross-site scripting (XSS) vulnerability in the WP Chrono WordPress plugin allows attackers to inject malicious scripts into web pages viewed by users. This affects all WordPress sites running WP Chrono versions up to 1.5.4. Attackers can execute arbitrary JavaScript in victims' browsers when they visit compromised pages.
💻 Affected Systems
- WP Chrono 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 steal administrator session cookies, take over WordPress sites, deface websites, or redirect visitors to malicious sites.
Likely Case
Attackers steal user session cookies, perform actions on behalf of authenticated users, or display phishing content.
If Mitigated
Limited impact if input validation and output encoding are properly implemented, though some script execution may still occur.
🎯 Exploit Status
DOM-based XSS typically requires user interaction but can be exploited through crafted links or stored content.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.5.5 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find WP Chrono and click 'Update Now'. 4. Verify update to version 1.5.5 or higher.
🔧 Temporary Workarounds
Disable WP Chrono plugin
allTemporarily deactivate the vulnerable plugin until patched
wp plugin deactivate wp-chrono
Implement Content Security Policy
allAdd CSP headers to restrict 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
- Implement web application firewall (WAF) rules to block XSS payloads
- Disable user input fields that trigger the vulnerability if identifiable
🔍 How to Verify
Check if Vulnerable:
Check WP Chrono plugin version in WordPress admin panel under Plugins > Installed PluginsCheck Version:
wp plugin get wp-chrono --field=versionVerify Fix Applied:
Confirm WP Chrono version is 1.5.5 or higher in plugin details📡 Detection & Monitoring
Log Indicators:
- Unusual JavaScript payloads in request logs
- Multiple requests to wp-chrono endpoints with script tags
Network Indicators:
- HTTP requests containing script tags or JavaScript payloads to WP Chrono endpoints
SIEM Query:
source="web_logs" AND (uri="*wp-chrono*" AND (content="<script>" OR content="javascript:"))