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Vulnerability record · CVE-2026-27198 · published 21 February 2026

CVE-2026-27198: Formwork project formwork improper privilege management vulnerability

Formwork Project · Formwork

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.

8.8 CVSS 3.1 High EPSS 0.53% · top 57.8% CWE-269 · Improper privilege management
8.8CVSS 3.1 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/getformwork/formwork/commit/19390a0b408e084bdef86f3581e050f3ee51e7cd Patch
https://github.com/getformwork/formwork/releases/tag/2.3.4 ProductRelease Notes
https://github.com/getformwork/formwork/security/advisories/GHSA-34p4-7w83-35g2 PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-27198), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.