Code Injection in ChurchCRM - CVE-2026-42288
Published: July 20, 2026
Vulnerability identifier: #VU138407
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-42288
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to improper code injection in the setup wizard configuration generation in src/setup/routes/setup.php and Config.php.example when processing a crafted DB_PASSWORD value. A remote attacker can send a specially crafted setup request to execute arbitrary code.
Exploitation is possible before authentication, and arbitrary PHP code is executed when the generated Config.php file is loaded on a subsequent request.
Affected software
ChurchCRM
How to mitigate CVE-2026-42288
Install security update from vendor's website.
ChurchCRM - update to 7.3.3