CVE-2025-58654
📋 TL;DR
This DOM-based cross-site scripting (XSS) vulnerability in the xili-language WordPress plugin allows attackers to inject malicious scripts into web pages viewed by other users. It affects all WordPress sites using xili-language plugin versions up to 2.21.3. Successful exploitation could lead to session hijacking, credential theft, or website defacement.
💻 Affected Systems
- xili-language 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 credentials, take over WordPress sites, install backdoors, or redirect visitors to malicious sites, potentially compromising the entire web server and associated data.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies, perform actions on behalf of authenticated users, or deface website content visible to visitors.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before execution, preventing any client-side code injection.
🎯 Exploit Status
DOM-based XSS requires specific user interaction or page states to trigger. No public exploit code available as of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 2.21.3
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'xili-language' plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and remove plugin until patched version is released.
🔧 Temporary Workarounds
Disable xili-language plugin
WordPressTemporarily deactivate the vulnerable plugin until patched version is available
wp plugin deactivate xili-language
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
- Disable or remove the xili-language plugin completely
- Implement web application firewall (WAF) rules to block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins for xili-language version. If version is 2.21.3 or lower, you are vulnerable.Check Version:
wp plugin get xili-language --field=versionVerify Fix Applied:
After updating, verify xili-language plugin version is higher than 2.21.3 in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual JavaScript payloads in URL parameters or form submissions
- Multiple failed XSS attempts in web server logs
- Suspicious user-agent strings containing script tags
Network Indicators:
- HTTP requests containing script tags or JavaScript in parameters
- Unusual outbound connections from user browsers after visiting affected pages
SIEM Query:
source="web_server_logs" AND ("<script" OR "javascript:" OR "onload=" OR "onerror=") AND uri_path="/wp-content/plugins/xili-language/"