CVE-2026-42613: critical vulnerability in getgrav grav
Grav: Privilege Escalation via Missing Server-Side Validation of groups/access
Published · Updated
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48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.4epss 1.1%
Grav is a file-based Web platform. Prior to 2.0.0-beta.2, the Login::register() method in the Login plugin accepts attacker-controlled groups and access fields from the registration POST data without server-side validation. When registration is enabled and groups or access are included in the configured allowed fields list, an unauthenticated user can self-register with admin.super privileges by injecting these fields into the registration request. This vulnerability is fixed in 2.0.0-beta.2.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Affected products
getgrav · gravpublic PoCs found — 1
cve_referencegithub.com/getgrav/grav/security/advisories/GHSA-w48r-jppp-rcfwunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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