CVE-2025-49908
📋 TL;DR
This stored XSS vulnerability in WPC Countdown Timer for WooCommerce allows attackers to inject malicious scripts into web pages that persist and execute when other users view them. It affects all WordPress sites using this plugin version 3.1.4 or earlier. The vulnerability enables session hijacking, credential theft, and content manipulation.
💻 Affected Systems
- WPC Countdown Timer for WooCommerce
⚠️ 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 WordPress sites, install backdoors, redirect users to malicious sites, or deface websites.
Likely Case
Attackers inject malicious scripts to steal user session cookies, redirect users to phishing pages, or display unwanted content/advertisements.
If Mitigated
With proper input validation and output encoding, the XSS payloads would be neutralized before reaching users, preventing script execution.
🎯 Exploit Status
Exploitation requires the ability to inject malicious input into the countdown timer functionality, typically through plugin settings or content fields.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: > 3.1.4
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'WPC Countdown Timer for WooCommerce'. 4. Click 'Update Now' if update available. 5. If no update appears, manually download latest version from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily deactivate the WPC Countdown Timer plugin until patched
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Or add to WordPress functions.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");
🧯 If You Can't Patch
- Remove the WPC Countdown Timer plugin entirely and use alternative countdown solutions
- Implement web application firewall (WAF) rules to block XSS payload patterns
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for WPC Countdown Timer version. If version is 3.1.4 or lower, you are vulnerable.Check Version:
wp plugin list --name='wpc-countdown-timer' --field=versionVerify Fix Applied:
After updating, verify plugin version shows higher than 3.1.4 in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to plugin admin endpoints
- Suspicious JavaScript payloads in request parameters
- Multiple failed XSS attempts in web server logs
Network Indicators:
- Unexpected outbound connections from user browsers to external domains
- Suspicious script tags in HTTP responses
SIEM Query:
source="web_server_logs" AND ("wpc-countdown-timer" OR "countdown-timer") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")