CVE-2025-30960 HIGH

CVE-2025-30960: WordPress FS Poster plugin <= 6.5.8 - Subscriber+ Site Wide Broken Access Control vulnerability

Vendor Fs-Code
Product FS Poster
Weakness CWE-862 · Missing authorization
Published April 16, 2025
Last update April 28, 2026

CVSS base score

8.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

What the vulnerability does

01Description

Missing Authorization vulnerability in fs-code FS Poster fs-poster.This issue affects FS Poster: from n/a through <= 6.5.8.

Explanation of Vulnerability in Simple Terms

02Summary

FS Poster versions 6.5.8 and earlier lack proper authorization checks, allowing authenticated users with low privileges to modify or delete content and access sensitive information. An attacker with a basic user account can perform actions restricted to administrators without additional interaction. This affects the integrity and availability of site content.

What an attacker can do

03Attacker Capabilities

Modify, delete, or access site content and settings that should be restricted to administrators.

Potential impact on your site

04Site Impact

Unauthorized users can alter or remove posts, pages, and settings; confidential data may be exposed.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account on the site; no additional user interaction required.

Key dates

06Disclosure timeline

April 16, 2025 CVE published
April 28, 2026 Record updated