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Craft Cms CVE-2026-28696

HIGH
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-03-04 security-advisories@github.com GHSA-7x43-mpfg-r9wj
Authentication Bypass Craft Cms
7.5
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

4
Analysis Generated
Mar 12, 2026 - 22:05 vuln.today
PoC Detected
Mar 05, 2026 - 19:54 vuln.today
Public exploit code
Patch released
Mar 05, 2026 - 19:54 nvd
Patch available
CVE Published
Mar 04, 2026 - 17:16 nvd
HIGH 7.5

DescriptionNVD

Craft is a content management system (CMS). Prior to 4.17.0-beta.1 and 5.9.0-beta.1, the GraphQL directive @parseRefs, intended to parse internal reference tags (e.g., {user:1:email}), can be abused by both authenticated users and unauthenticated guests (if a Public Schema is enabled) to access sensitive attributes of any element in the CMS. The implementation in Elements::parseRefs fails to perform authorization checks, allowing attackers to read data they are not authorized to view. This vulnerability is fixed in 4.17.0-beta.1 and 5.9.0-beta.1.

AnalysisAI

Craft is a content management system (CMS). [CVSS 7.5 HIGH]

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Access public GraphQL schema
Exploit
Query @parseRefs directive
Execution
Craft malicious reference tags
Impact
Retrieve unauthorized sensitive attributes
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Vulnerability AssessmentAI

Exploitation Public GraphQL Schema must be enabled in Craft CMS (versions prior to 4.17.0-beta.1 or 5.9.0-beta.1). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 7.5 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker without authentication could exploit this vulnerability to compromise the affected system.
Remediation A vendor patch is available — apply it immediately. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours: Inventory all Craft CMS instances across the organization and confirm patch availability for your version. …

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CVE-2026-28696 vulnerability details – vuln.today
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