CVE-2025-30817: 
WordPress vulnerability analysis and mitigation

A Missing Authorization vulnerability was identified in wpzita Z Companion WordPress plugin, tracked as CVE-2025-30817. The vulnerability affects versions through 1.0.13 and allows exploiting incorrectly configured access control security levels. The issue was discovered by Trương Hữu Phúc and was publicly disclosed on March 27, 2025 (Patchstack).

The vulnerability is classified as a Broken Access Control issue (CWE-862) with a CVSS v3.1 Base Score of 5.4 (Medium). The vulnerability vector is described as CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L, indicating network accessibility, low attack complexity, and required low privileges for exploitation (Patchstack).

The vulnerability stems from a missing authorization, authentication, or nonce token check in a function that could allow an unprivileged user to execute certain higher privileged actions. The specific impact varies case by case, though it has been assessed as having a low severity impact (Patchstack).

The vulnerability has been fixed in version 1.1.0 of the Z Companion plugin. Users are advised to update to version 1.1.0 or later to remove the vulnerability. The security issue has been assessed as having a low severity impact and is considered unlikely to be exploited (Patchstack).