GetGrav grav-plugin-api up to 1.0.19 InvitationsController stripSuperFlags privileges management

Summaryinfo

A vulnerability, which was classified as critical, was found in GetGrav grav-plugin-api up to 1.0.19. Impacted is the function stripSuperFlags of the component InvitationsController. Such manipulation leads to privileges management. This vulnerability is listed as CVE-2026-86195. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in GetGrav grav-plugin-api up to 1.0.19. It has been rated as critical. Affected by this issue is the function stripSuperFlags of the component InvitationsController. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-86195 since 09/05/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading to version 1.0.20 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Automation Software

Vendor

• GetGrav

Name

• grav-plugin-api

Version

• 1.0.0
• 1.0.1
• 1.0.2
• 1.0.3
• 1.0.4
• 1.0.5
• 1.0.6
• 1.0.7
• 1.0.8
• 1.0.9
• 1.0.10
• 1.0.11
• 1.0.12
• 1.0.13
• 1.0.14
• 1.0.15
• 1.0.16
• 1.0.17
• 1.0.18
• 1.0.19

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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