CVE-2026-86195

grav-plugin-api 1.0.0 through 1.0.19 Privilege Escalation via Dot-Keyed Super Flag

Published: Sep 5, 2026Updated: Sep 8, 2026 Sources: CVE List NVDCWE-269

N/ACVSS

NVD MITRE

Description

grav-plugin-api versions before 1.0.20 contain a privilege escalation vulnerability in the InvitationsController where the stripSuperFlags() method only removes nested super flags but fails to strip dot-keyed equivalents like api.super. A non-super user manager with api.access and api.users.write permissions can create an invitation with a dot-keyed super flag in the access payload that bypasses the guard and persists to the new account. Attackers can accept the invitation through the public endpoint without real invitee interaction to create a super-admin account and immediately receive a valid JWT for full site control.

No summary for this CVE yet.

Weaknesses

CWE-269

Affected Products

getgrav

oss-projectaka getgrav/grav, grav-plugin-admin, grav

grav-plugin-apiOn-premWeb App

Web & CMS Plugins / cms-core

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Privilege Escalation

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References

https://github.com/getgrav/grav/security/advisories/GHSA-m363-3hww-gcwc

github.com

https://www.vulncheck.com/advisories/grav-plugin-api-1.0.0-through-1.0.19-privilege-escalation-via-dot-keyed-super-flag

vulncheck.com

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