GitHub Advisoryadvisory · Packagist
GHSA-34p4-7w83-35g2 Formwork Improperly Managed Privileges in User creation
HIGH
Official page ↗
- Aliases
- CVE-2026-27198
- Ecosystem
- Packagist
- Packages
- getformwork/formwork
- Severity
- High
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-269
- Reviewed
- 2026-02-19
Affected packages
• Packagist getformwork/formwork: >= 2.0.0, < 2.3.4 → fixed in 2.3.4
Description
Summary
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.
Impact
Successful exploitation allows an attacker to:
• Gain full administrative control over the CMS.
• Access all site data and user information.
• Modify system configuration and security settings.
• Create, modify, or delete any user account, including legitimate administrators.
Patches
Formwork 2.3.4 properly assigns roles on user creation.
Related
Alias · CVE (1)
- CVE-2026-27198 Formwork is a flat file-based Content Management System (CMS). vulnerability
Weakness · CWE (1)
- CWE-269 Improper Privilege Management weakness
References
- https://github.com/getformwork/formwork/security/advisories/GHSA-34p4-7w83-35g2 web
- https://nvd.nist.gov/vuln/detail/CVE-2026-27198 advisory
- https://github.com/getformwork/formwork/commit/19390a0b408e084bdef86f3581e050f3ee51e7cd web
- https://github.com/getformwork/formwork package
- https://github.com/getformwork/formwork/releases/tag/2.3.4 web