CVE-2026-75835Network attack vector

Information disclosure via unscoped authorize checks

Published Aug 18, 2026 · Updated Aug 18, 2026

Missing authorization in the Grav API plugin before 1.0.14 allows remote authenticated users to read authorize-gated UI metadata via scoped API keys. In AbstractApiController.php, userPassesAuthorize() treats a caller as authorized by checking the account's raw super-admin state and hasPermission() ACL grants, but it never consults the request's API-key scopes before returning sidebar, menubar, widget, or users-list definitions. Exploitation requires a scoped key minted on an account that already holds the gated permission; the disclosed data is limited to read-only UI metadata and item definitions, with no direct write or code-execution path from this flaw alone.

CVSS severity4.3
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in the Grav API plugin before 1.0.14 allows remote authenticated users to read authorize-gated UI metadata via scoped API keys. In AbstractApiController.php, userPassesAuthorize() treats a caller as authorized by checking the account's raw super-admin state and hasPermission() ACL grants, but it never consults the request's API-key scopes before returning sidebar, menubar, widget, or users-list definitions. Exploitation requires a scoped key minted on an account that already holds the gated permission; the disclosed data is limited to read-only UI metadata and item definitions, with no direct write or code-execution path from this flaw alone.

The record

CVE
CVE-2026-75835
Published
Aug 18, 2026
Updated
Aug 18, 2026
Vendor
Grav
Product
Grav
Classifications
CWE-862
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 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 <1.0.14

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Grav · Gravversion=0 <1.0.14

Published CVSS scores

4.3VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-862Missing Authorization

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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