CVE-2026-86195Network attack vector

Privilege escalation via dot-keyed super flag

Published Sep 5, 2026 · Updated Sep 8, 2026

Privilege escalation in GetGrav Grav API Plugin before 1.0.20 allows remote authenticated users to create super-admin accounts. InvitationsController.stripSuperFlags removes nested super flags but leaves dot-keyed api.super entries in an invitation access payload. A manager with api.access and api.users.write can persist that flag, accept the invitation publicly, and receive a JWT granting full site control.

CVSS severityUnavailable
Unscored
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in GetGrav Grav API Plugin before 1.0.20 allows remote authenticated users to create super-admin accounts. InvitationsController.stripSuperFlags removes nested super flags but leaves dot-keyed api.super entries in an invitation access payload. A manager with api.access and api.users.write can persist that flag, accept the invitation publicly, and receive a JWT granting full site control.

The record

CVE
CVE-2026-86195
Published
Sep 5, 2026
Updated
Sep 8, 2026
Vendor
GetGrav
Product
Grav API Plugin
Classifications
CWE-269, T1136
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.0.20

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GetGrav · Grav API Pluginversion=0 <1.0.20

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1136Create Account

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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