Server-Side Request Forgery (SSRF) in ZoneMinder - #VU158939
Published: November 3, 2026
Vulnerability identifier: #VU158939
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/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 services and trigger state-changing GET endpoints through server-side requests to arbitrary internal or external hosts.
The vulnerability exists due to insufficient validation of destination URLs in the ZoneMinder image view route when processing the proxy parameter. A remote user can supply an arbitrary HTTP or HTTPS URL that passes a scheme-only check and is fetched using fopen() to probe internal services or trigger unauthorized actions through reachable GET endpoints.
Response handling is image-oriented, so successful exploitation does not necessarily expose the complete response from the target service.
Affected software
ZoneMinder
Remediation
Install security update from vendor's website.
ZoneMinder - update to 1.38.4