ZoneMinder OS Command Injection CVE-2026-76060

Source context: this article examines information published by the source on August 25, 2026. This site’s publication date is shown separately. Check the latest vendor guidance before acting.

What the vulnerability is

CVE-2026-76060 is an OS command injection vulnerability (CWE-78) located in the event export functionality of ZoneMinder. The flaw occurs because the exportFile HTTP request parameter is passed without sanitization into a shell command executed via the PHP exec() function. This allows an authenticated attacker to execute arbitrary operating system commands with the privileges of the web server user.

Exposure and applicability

This vulnerability affects ZoneMinder versions 1.37.48 and 1.38.3. To exploit this flaw, an attacker must possess valid authentication credentials and have the ‘View Events’ permission assigned to their account. While a public Proof of Concept (PoC) has been identified by CISA, there are no reported instances of this vulnerability being exploited in the wild.

Remediation priorities

Our analysis suggests prioritizing remediation based on the level of access granted to users within the ZoneMinder environment. Because the attack vector is network-based and requires specific permissions, defenders should focus on the following:

1. Version Upgrade: The primary corrective action is upgrading to ZoneMinder version 1.38.3 or later. This addresses the root cause by correcting how the exportFile parameter is handled.
2. Network Isolation: For environments where immediate patching is not feasible, we recommend isolating the ZoneMinder server from the public internet and business networks using firewalls.
3. Access Control: Restricting access to the system via a Virtual Private Network (VPN) can reduce the likelihood of unauthorized network-level access to the vulnerable interface.

How to validate remediation

Verification must go beyond checking version numbers, as a version string does not guarantee that the updated binaries or source code were successfully deployed and active in the production environment.

Defenders should verify the mitigation by confirming the successful application of the update through system package managers or build logs. To ensure exposure is reduced, security teams should validate that the web server user’s permissions are restricted to the minimum necessary for operation, limiting the potential impact if a similar injection flaw were present.

Limits and open questions

Upgrading the software addresses the specific unsanitized input in the exportFile parameter but does not eliminate the residual risk associated with other potentially unsanitized inputs within the application. Additionally, while network isolation and VPNs reduce exposure, they are compensating controls that limit access rather than fixing the underlying vulnerability; if an attacker gains authenticated access via a compromised account or a VPN vulnerability, the system remains at risk until patched.

Source and editorial note

Zoneminder · Source date: August 25, 2026 · Retrieved August 31, 2026.

Material facts are tied to the cited primary source. Recommendations are independent defensive analysis unless attributed to the source. Confirm consequential decisions against current authoritative guidance.

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