CVE-2025-60138
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the SKT Blocks WordPress plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. The vulnerability affects all versions up to 2.5 of the SKT Blocks plugin, putting WordPress sites using this plugin at risk.
💻 Affected Systems
- SKT Blocks 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 admin accounts, deface websites, redirect users to malicious sites, or install backdoors for persistent access.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies or credentials, potentially compromising user accounts and sensitive data.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before execution, preventing successful exploitation.
🎯 Exploit Status
Exploitation requires the ability to inject malicious input into web page generation, typically through plugin features that accept user input.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 2.5
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find SKT Blocks and check for updates. 4. If update is available, click 'Update Now'. 5. Alternatively, download latest version from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable SKT Blocks Plugin
WordPressTemporarily disable the vulnerable plugin until patched
wp plugin deactivate skt-blocks
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 use WordPress security plugins to implement CSP
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Restrict plugin access to trusted users only and implement strict input validation
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for SKT Blocks version. If version is 2.5 or lower, you are vulnerable.Check Version:
wp plugin get skt-blocks --field=versionVerify Fix Applied:
After updating, verify SKT Blocks version is higher than 2.5 in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to plugin endpoints with script tags or JavaScript payloads
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests containing suspicious script tags or JavaScript in parameters
- Unexpected outbound connections from user browsers after visiting affected pages
SIEM Query:
source="web_server" AND ("skt-blocks" OR "wp-content/plugins/skt-blocks") AND ("<script" OR "javascript:" OR "onload=" OR "onerror=")