CVE-2025-22523
📋 TL;DR
This SQL injection vulnerability in the NotFound Schedule WordPress plugin allows attackers to execute arbitrary SQL commands through blind SQL injection techniques. It affects all WordPress sites running the Schedule plugin version 1.0.0 or earlier. Attackers can potentially extract, modify, or delete database content.
💻 Affected Systems
- NotFound Schedule 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
Complete database compromise leading to data theft, data destruction, privilege escalation, and full site takeover.
Likely Case
Data extraction from the WordPress database including user credentials, sensitive content, and configuration data.
If Mitigated
Limited impact with proper input validation and parameterized queries preventing successful exploitation.
🎯 Exploit Status
Blind SQL injection typically requires more requests but is still highly exploitable with automated tools.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 1.0.0
Vendor Advisory: https://patchstack.com/database/wordpress/plugin/schedule/vulnerability/wordpress-schedule-plugin-1-0-0-sql-injection-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Locate 'Schedule' plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete the plugin immediately.
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rules
allImplement WAF rules to block SQL injection patterns targeting the Schedule plugin endpoints.
Input Validation Filter
allAdd custom input validation filters in WordPress to sanitize all Schedule plugin inputs.
add_filter('schedule_plugin_input', 'sanitize_text_field');
🧯 If You Can't Patch
- Immediately deactivate and remove the Schedule plugin from all WordPress installations.
- Implement network segmentation to isolate WordPress servers and restrict database access.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for 'Schedule' plugin version 1.0.0 or earlier.Check Version:
wp plugin list --name=schedule --field=versionVerify Fix Applied:
Verify the Schedule plugin is either updated to a version after 1.0.0 or completely removed from the plugins directory.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in WordPress debug logs
- Multiple failed SQL queries from single IP addresses
- Patterns of SQL syntax in HTTP request logs
Network Indicators:
- HTTP requests containing SQL keywords (SELECT, UNION, etc.) to Schedule plugin endpoints
- Unusual database connection patterns from web servers
SIEM Query:
source="web_logs" AND (url="*schedule*" AND (query="*SELECT*" OR query="*UNION*" OR query="*OR 1=1*"))