CVE-2025-49970: 
WordPress vulnerability analysis and mitigation

The Hello FSE Blog WordPress theme contains a Missing Authorization vulnerability (CVE-2025-49970) that affects versions through 1.0.6. The vulnerability was discovered by Peter Thaleikis and was publicly disclosed on June 19, 2025. This security issue allows exploiting incorrectly configured access control security levels in the WordPress theme (Wiz, Patchstack).

The vulnerability has been assigned a CVSS v3.1 base score of 4.3 (Medium) with the vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N. The issue is classified as CWE-862 (Missing Authorization) and requires subscriber-level privileges to exploit. The broken access control vulnerability stems from missing authorization, authentication, or nonce token checks in certain functions, potentially allowing unprivileged users to execute higher privileged actions (Wiz, Patchstack).

The vulnerability has been assessed as having a low severity impact and is considered unlikely to be exploited. However, since the software is considered abandoned (last updated over a year ago), the security risk may persist as no official fixes are expected to be released (Patchstack).

As no official fix is available and the theme is considered abandoned, the recommended mitigation is to remove and replace the Hello FSE Blog theme with an alternative solution. Users should note that simply deactivating the theme does not remove the security threat unless a virtual patch (vPatch) is deployed (Patchstack).