CVE-2025-6989
📋 TL;DR
The Kallyas WordPress theme contains a vulnerability that allows authenticated attackers with Contributor-level access or higher to delete arbitrary folders on the server due to insufficient file path validation. This affects all Kallyas theme installations up to version 4.21.0. Attackers can cause service disruption, data loss, or potentially escalate privileges by deleting critical system folders.
💻 Affected Systems
- Kallyas WordPress Theme
⚠️ 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 website destruction through deletion of WordPress core folders, leading to permanent data loss and extended downtime requiring full restoration from backups.
Likely Case
Partial website functionality loss through deletion of theme/plugin folders, causing broken functionality and requiring partial restoration.
If Mitigated
Minimal impact with proper access controls, file permissions, and regular backups limiting damage to non-critical directories.
🎯 Exploit Status
Exploitation requires authenticated access but is technically simple once credentials are obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.21.1 or later
Vendor Advisory: https://themeforest.net/item/kallyas-responsive-multipurpose-wordpress-theme/4091658
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Appearance > Themes. 3. Check if Kallyas theme update is available. 4. Update to version 4.21.1 or later. 5. Clear any caching plugins/CDN caches.
🔧 Temporary Workarounds
Remove Contributor Role Access
allTemporarily remove Contributor role access or restrict user roles that can access theme functions.
File Permission Restrictions
linuxSet restrictive file permissions on WordPress directories to prevent deletion.
chmod 755 /path/to/wordpress/wp-content/themes
chmod 644 /path/to/wordpress/wp-content/themes/kallyas/*
🧯 If You Can't Patch
- Immediately restrict or remove Contributor-level user accounts
- Implement strict file system monitoring and alerting for deletion events
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Appearance > Themes for Kallyas theme version. If version is 4.21.0 or earlier, system is vulnerable.Check Version:
wp theme list --field=name,version --path=/path/to/wordpress | grep kallyasVerify Fix Applied:
Confirm Kallyas theme version is 4.21.1 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual folder deletion events in web server logs
- Multiple DELETE requests to theme-related endpoints from Contributor accounts
- 404 errors for suddenly missing theme files
Network Indicators:
- HTTP POST requests to theme deletion endpoints from non-admin accounts
- Unusual pattern of file system operations
SIEM Query:
source="web_server" (method="POST" AND uri="*/delete_font*" AND user_role="contributor")