by Kastro
Paper/Archive/CVE-2026-75837

CVE-2026-75837

getgrav grav — Grav before 2.0.14 Privilege Escalation via Group Access Field

EPSS 0.5%public exploitCVSS 9.3
critical.is priorityof 100
46
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 42.4.424 × 208.5Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

Grav before 2.0.14 fails to guard the access field in the core group blueprint with the required security@: admin.super restriction. A delegated admin.users operator can save a group with access[admin][super]=true to escalate to super-admin, gaining scheduler and Twig evaluation capabilities.

Affected

ProductAffectedFixed inSource
grav< 2.0.142.0.14CNA

Scores by source

VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
VulnCheck (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

exploitgithub.com/getgrav/grav/security/advisories/GHSA-xhfv-7758-r9hxwriteupvulncheck.com/advisories/grav-before-privilege-escalation-via-group-access-field