CVE-2026-65897
HIGHGrav API Plugin 1.0.9 Privilege Escalation via Invitations groups
Title source: cnaDescription
Grav API Plugin versions before 1.0.10 fail to validate the groups field in InvitationsController::create(), allowing authenticated api.users.write callers to assign invited accounts to groups that grant api.super permissions. Attackers can create invitation records with elevated group membership, and when accepted, the new account gains full super-admin API access without the inviter holding those permissions.
References (4)
Core 4
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-m86m-jjcg-gcvv)
https://github.com/getgrav/grav/security/advisories/GHSA-m86m-jjcg-gcvv
Third Party Advisory third-party-advisory
VulnCheck Advisory: Grav API Plugin 1.0.9 Privilege Escalation via Invitations groups
https://www.vulncheck.com/advisories/grav-api-plugin-privilege-escalation-via-invitations-groups
Scores
CVSS v3
8.8
EPSS
0.0036
EPSS Percentile
28.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-269
Status
published
Products (2)
getgrav/grav
< 1.0.10
getgrav/grav
1.0.10
Published
Jul 23, 2026
Tracked Since
Jul 23, 2026