CVE-2025-31572
📋 TL;DR
This CSRF vulnerability in the WordPress Multi Days Events and Multi Events in One Day Calendar plugin allows attackers to trick authenticated administrators into performing unintended actions. It affects all versions up to 1.1.3, potentially enabling unauthorized calendar modifications or plugin settings changes.
💻 Affected Systems
- Multi Days Events and Multi Events in One Day Calendar (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 modify calendar events, delete data, or change plugin settings leading to data loss or unauthorized content changes
Likely Case
Unauthorized calendar event creation/modification, potential data manipulation affecting website functionality
If Mitigated
Limited impact with proper CSRF protections and user awareness
🎯 Exploit Status
CSRF attacks typically require social engineering to trick authenticated users
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.1.3
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins > Installed Plugins
3. Find 'Multi Days Events and Multi Events in One Day Calendar'
4. Click 'Update Now' if available
5. If no update available, deactivate and remove plugin
🔧 Temporary Workarounds
Implement CSRF Protection Headers
allAdd security headers to WordPress to help prevent CSRF attacks
Add to .htaccess: Header set X-Frame-Options "SAMEORIGIN"
Add to .htaccess: Header set Content-Security-Policy "frame-ancestors 'self'"
🧯 If You Can't Patch
- Deactivate the plugin immediately
- Implement strict access controls and user training about suspicious links
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Multi Days Events and Multi Events in One Day Calendar > Version numberCheck Version:
wp plugin list --name="Multi Days Events and Multi Events in One Day Calendar" --field=versionVerify Fix Applied:
Verify plugin version is greater than 1.1.3 in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Multiple failed CSRF token validations
- Unusual calendar modification requests from unexpected sources
Network Indicators:
- Requests to calendar endpoints without proper referrer headers
- Suspicious cross-origin requests to admin-ajax.php
SIEM Query:
source="wordpress" AND (uri_path="*calendar*" OR uri_path="*admin-ajax*") AND referrer NOT CONTAINS own_domain