CVE-2026-27198

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 v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/getformwork/formwork/commit/19390a0b408e084bdef86f3581e050f3ee51e7cd	Patch
https://github.com/getformwork/formwork/releases/tag/2.3.4	Product Release Notes
https://github.com/getformwork/formwork/security/advisories/GHSA-34p4-7w83-35g2	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:formwork_project:formwork:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-21 06:17

Updated : 2026-03-03 17:33

NVD link : CVE-2026-27198

Mitre link : CVE-2026-27198

CVE.ORG link : CVE-2026-27198

JSON object : View

Products Affected

formwork_project

formwork

CWE

CWE-269

Improper Privilege Management

{"id": "CVE-2026-27198", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2026-02-21T06:17:00.543", "references": [{"url": "https://github.com/getformwork/formwork/commit/19390a0b408e084bdef86f3581e050f3ee51e7cd", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/getformwork/formwork/releases/tag/2.3.4", "tags": ["Product", "Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/getformwork/formwork/security/advisories/GHSA-34p4-7w83-35g2", "tags": ["Patch", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-269"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Formwork es un Sistema de Gesti\u00f3n de Contenidos (CMS) basado en archivos planos. En las versiones 2.0.0 a 2.3.3, la aplicaci\u00f3n no logra aplicar correctamente la autorizaci\u00f3n basada en roles durante la creaci\u00f3n de cuentas. Aunque el sistema valida que el rol especificado existe, no verifica si el usuario actual tiene privilegios suficientes para asignar roles altamente privilegiados como 'admin'. Como resultado, un usuario autenticado con el rol de 'editor' puede crear una nueva cuenta con privilegios administrativos, lo que lleva a un acceso administrativo completo y a un compromiso total del CMS. Este problema ha sido solucionado en la versi\u00f3n 2.3.4."}], "lastModified": "2026-03-03T17:33:54.540", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:formwork_project:formwork:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "49BAB15C-160B-4440-BD8D-DD2D7505D24E", "versionEndExcluding": "2.3.4", "versionStartIncluding": "2.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}