CVE-2026-27198

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{"affected": [{"affectedData": [{"product": "formwork", "vendor": "getformwork", "versions": [{"status": "affected", "version": ">= 2.0.0, < 2.3.4"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:formwork_project:formwork:*:*:*:*:*:*:*:*", "matchCriteriaId": "49BAB15C-160B-4440-BD8D-DD2D7505D24E", "versionEndExcluding": "2.3.4", "versionStartIncluding": "2.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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."}], "id": "CVE-2026-27198", "lastModified": "2026-06-17T10:26:50.093", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-27198", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-02-24T19:00:57.663533Z", "version": "2.0.3"}}]}, "published": "2026-02-21T06:17:00.543", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/getformwork/formwork/commit/19390a0b408e084bdef86f3581e050f3ee51e7cd"}, {"source": "security-advisories@github.com", "tags": ["Product", "Release Notes"], "url": "https://github.com/getformwork/formwork/releases/tag/2.3.4"}, {"source": "security-advisories@github.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://github.com/getformwork/formwork/security/advisories/GHSA-34p4-7w83-35g2"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-269"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.0.0,2.3.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "formwork", "source": "cna", "vendor": "getformwork"}, "product": "formwork", "vendor": "getformwork"}], "analysis": {"en": {"generated_at": "2026-04-17T16:54:57.964869+00:00", "value": {"mitigation_remediation": ["Apply the vendor-provided patch or upgrade to Formwork 2.3.4 or later.", "Audit the CMS configuration to ensure that only users with sufficient privileges can assign high-level roles during account creation.", "Implement monitoring and log review to detect and respond to unauthorized role assignment attempts."], "summary": {"action": "Immediate Patch", "impact": "Privilege Escalation"}, "threat_synthesis": {"affected_systems": "Formwork CMS versions 2.0.0 through 2.3.3 are affected. The issue is fixed in version 2.3.4 and later releases.", "description_and_impact": "The vulnerability allows an authenticated user with a low privilege role, such as editor, to create new user accounts and assign the highly privileged admin role. As a result, the attacker can gain full administrative control over the CMS, compromising confidentiality, integrity, and availability of the site.", "risk_and_exploitability": "The CVSS score of 8.8 indicates a high severity. The EPSS score is less than 1 percent, suggesting limited exploitation probability at present. The vulnerability has not been listed in the CISA KEV catalog. Attackers only need to be authenticated with an editor role; the flaw lies in missing privilege checks during account creation, and no additional conditions are required to exploit it."}}}}, "created": "2026-02-23T14:32:44.721921+00:00", "updated": "2026-04-17T17:00:10.187948+00:00", "vendors": ["getformwork", "getformwork$PRODUCT$formwork"]}