Missing Authentication for Critical Function in ChurchCRM - #VU129694
Published: May 5, 2026
Vulnerability identifier: #VU129694
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: N/A
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ChurchCRM
Affected software:
ChurchCRM
ChurchCRM
Detailed vulnerability description
The vulnerability allows a remote attacker to trigger database migrations, potentially causing a denial of service or data corruption.
The vulnerability exists due to missing authentication for critical function in the POST /external/system/db-upgrade endpoint when handling upgrade requests. A remote attacker can send a crafted request to trigger database migrations, potentially causing a denial of service or data corruption.
The endpoint calls UpgradeService::upgradeDatabaseVersion(), which executes SQL files and includes PHP files from disk.
Remediation
Install security update from vendor's website.