CVE-2025-25116
📋 TL;DR
This SQL injection vulnerability in the WordPress 'Link to URL / Post' plugin allows attackers to execute arbitrary SQL commands through blind SQL injection techniques. It affects all WordPress sites using this plugin from version n/a through 1.3, potentially exposing database contents.
💻 Affected Systems
- WordPress Link to URL / Post 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
Complete database compromise including sensitive user data, admin credentials, and potential privilege escalation to full site takeover.
Likely Case
Data exfiltration of plugin-related tables, user information disclosure, and potential authentication bypass.
If Mitigated
Limited impact with proper input validation and parameterized queries in place.
🎯 Exploit Status
Blind SQL injection requires more sophisticated exploitation techniques than standard SQLi but is still feasible.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.3
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Link to URL / Post' plugin. 4. Click 'Update Now' if update available. 5. If no update, deactivate and remove plugin immediately.
🔧 Temporary Workarounds
Disable vulnerable plugin
WordPressTemporarily disable the plugin until patched version is available
wp plugin deactivate link-to-url-post
Web Application Firewall rules
allImplement WAF rules to block SQL injection patterns targeting this plugin
🧯 If You Can't Patch
- Remove the plugin completely from all WordPress installations
- Implement strict network segmentation and access controls to limit exposure
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Link to URL / Post → Version number. If version is 1.3 or earlier, you are vulnerable.Check Version:
wp plugin get link-to-url-post --field=versionVerify Fix Applied:
Verify plugin version is greater than 1.3 in WordPress admin panel and test plugin functionality.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in WordPress logs
- Multiple failed SQL queries from single IP
- Requests containing SQL keywords targeting plugin endpoints
Network Indicators:
- HTTP requests with SQL injection payloads to plugin-specific URLs
- Unusual database connection patterns from web server
SIEM Query:
source="wordpress.log" AND ("SQL syntax" OR "database error" OR "mysql_error") AND "link-to-url-post"