CVE-2026-53953

GetSimple CMS is a content management system (CMS), and GetSimple CMS CE is the community edition of that CMS. In version 3.3.22, the password reset endpoint can be accessed without authentication. When a reset request is submitted for an existing user, the application generates a new temporary password and immediately stores its hash as the user's new password. The temporary password is generated using PHP rand() seeded with microtime(). Because this seed is time-based and has a limited effective search space, an attacker can generate possible reset password candidates. Since the admin login endpoint does not enforce rate limiting or account lockout, these candidates can be tested online until the correct password is found. Successful exploitation may lead to administrator account takeover. At time of publication, there are no publicly available patches.

• CWE-338
• CWE-640

• https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-vvhx-56q2-gcjq
• https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-vvhx-56q2-gcjq

Published

Oct 1, 2026

Last Modified

Oct 5, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-53948Ghost is a Node.js content management system. From 6.19.4 un…5.4
• CVE-2026-53949Ghost is a Node.js content management system. From 5.46.1 un…5.3
• CVE-2026-5395The Fluent Forms – Customizable Contact Forms, Survey, Quiz,…8.2
• CVE-2026-53950@tryghost/activitypub is Ghost’s social/federation client ap…7.5
• CVE-2026-53951Copier is a library and CLI app for rendering project templa…8.8
• CVE-2026-53952GetSimple CMS is a content management system (CMS), and GetS…9.8
• CVE-2026-53954Bugsink is a self-hosted error tracking tool. Prior to versi…4.3
• CVE-2026-53956Rattler is a library that provides common functionality used…5.4
• CVE-2026-53957Contentful MCP Server is a Model Context Protocol server for…7.7
• CVE-2026-539584gaBoards is a boards system for realtime project management…7.6
• CVE-2026-539594gaBoards is a boards system for realtime project management…6.5
• CVE-2026-5396The Fluent Forms plugin for WordPress is vulnerable to Autho…8.2