CVE-2025-30076
📋 TL;DR
This vulnerability allows authenticated Koha administrators to execute arbitrary commands on the server via shell injection in the scheduler tool. Attackers with admin privileges can exploit this to gain remote code execution. All Koha installations with vulnerable versions are affected.
💻 Affected Systems
- Koha
⚠️ 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
Full server compromise leading to data theft, ransomware deployment, or complete system takeover
Likely Case
Privilege escalation leading to unauthorized data access or system manipulation
If Mitigated
Limited impact if proper access controls and monitoring are in place
🎯 Exploit Status
Exploit requires admin credentials but is straightforward once authenticated
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 24.11.02 or later
Vendor Advisory: https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=39170
Restart Required: No
Instructions:
1. Backup your Koha installation and database. 2. Update to Koha 24.11.02 or later. 3. Verify the patch is applied by checking the scheduler.pl file.
🔧 Temporary Workarounds
Restrict scheduler.pl access
allTemporarily restrict access to the vulnerable scheduler.pl tool
chmod 000 /path/to/koha/tools/scheduler.pl
Remove scheduler.pl
allTemporarily remove or rename the vulnerable file
mv /path/to/koha/tools/scheduler.pl /path/to/koha/tools/scheduler.pl.disabled
🧯 If You Can't Patch
- Implement strict access controls to limit admin account usage
- Monitor and audit all admin activities on the Koha system
🔍 How to Verify
Check if Vulnerable:
Check Koha version: if below 24.11.02, system is vulnerableCheck Version:
koha-versionVerify Fix Applied:
Verify Koha version is 24.11.02 or later and scheduler.pl has been updated📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Suspicious scheduler.pl usage by admin accounts
Network Indicators:
- Unexpected outbound connections from Koha server
SIEM Query:
source="koha" AND (process="scheduler.pl" OR command="*;*" OR command="*|*")