Server-Side Request Forgery (SSRF) in ZoneMinder - #VU158943
Published: November 3, 2026
Vulnerability identifier: #VU158943
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:L/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to probe internal HTTP services, disclose internal image content, and cause a denial of service.
The vulnerability exists due to insufficient validation of destination URLs in ZoneMinder's web/views/image.php image proxy when processing the proxy query parameter. A remote user can submit specially crafted HTTP or HTTPS URLs to induce server-side requests to internal services, enumerate hosts and ports through response differences, retrieve image-format responses, and exhaust PHP-FPM workers or internal service rate limits.
Affected software
ZoneMinder
Remediation
Install security update from vendor's website.
ZoneMinder - update to 1.38.4