CVE-2026-27198

HIGH

Formwork 2.0.0-2.3.3 - Privilege Escalation

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2026-27198. PoCs published by G3XAR.

AI-analyzed exploit summary The repository provides a detailed technical analysis of CVE-2026-27198, an improper privilege management vulnerability in Formwork CMS. It explains how an authenticated user with the 'editor' role can exploit missing server-side authorization checks to create an admin account, leading to full administrative control.

Description

Formwork is a flat file-based Content Management System (CMS). In versions 2.0.0 through 2.3.3, the application fails to properly enforce role-based authorization during account creation. Although the system validates that the specified role exists, it does not verify whether the current user has sufficient privileges to assign highly privileged roles such as admin. As a result, an authenticated user with the editor role can create a new account with administrative privileges, leading to full administrative access and complete compromise of the CMS. This issue has been fixed in version 2.3.4.

Exploits (1)

github WRITEUP
by G3XAR · poc
https://github.com/G3XAR/Security-Research/tree/main/CVE-2026-27198

The repository provides a detailed technical analysis of CVE-2026-27198, an improper privilege management vulnerability in Formwork CMS. It explains how an authenticated user with the 'editor' role can exploit missing server-side authorization checks to create an admin account, leading to full administrative control.

Classification
Writeup 95%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: Formwork CMS versions >=2.0.0, <=2.3.3
Auth required
Prerequisites: Authenticated access with 'editor' role
devstral-2 · analyzed Feb 27, 2026 Full analysis →

Scores

CVSS v3 8.8
EPSS 0.0002
EPSS Percentile 6.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-269
Status published
Products (2)
formwork_project/formwork 2.0.0 - 2.3.4
getformwork/formwork 2.0.0 - 2.3.4Packagist
Published Feb 21, 2026
Tracked Since Feb 21, 2026