What the vulnerability does
01Description
Missing Authorization vulnerability in Andy Stratton Append Content append-content allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Append Content: from n/a through <= 2.1.1.
Explanation of Vulnerability in Simple Terms
02Summary
Append Content through version 2.1.1 lacks proper authorization checks, allowing unauthenticated attackers to modify site content and cause service disruptions. The vulnerability requires no special access or user interaction. Site administrators should update to a version newer than 2.1.1 immediately.
What an attacker can do
03Attacker Capabilities
Modify site content and disrupt service availability without authentication.
Potential impact on your site
04Site Impact
Unauthorized users can alter published content and cause the site to become unavailable.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
April 1, 2025
CVE published
April 28, 2026
Record updated