FKIE_CVE-2026-42609

Vulnerability from fkie_nvd - Published: 2026-05-11 16:17 - Updated: 2026-05-14 18:16
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Summary
Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a business logic vulnerability in the Grav Admin Panel allows a low-privileged user (with only user creation permissions) to overwrite existing accounts, including the primary administrator. By creating a new user with a username that already exists, the system updates the existing account's metadata and permissions instead of rejecting the request. This leads to a Denial of Service (DoS) on administrative functions and Privilege De-escalation of the root account. This vulnerability is fixed in 2.0.0-beta.2.
References
security-advisories@github.comhttps://github.com/getgrav/grav/commit/5a12f9be8314682c8713e569e330f11805d0a663Patch
security-advisories@github.comhttps://github.com/getgrav/grav/commit/c66dfeb5ff679a1667678c6335eb9ff3255dfc47Patch
security-advisories@github.comhttps://github.com/getgrav/grav/commit/d904efc33e03ebb597afde8d3368b28cf0423632Patch
security-advisories@github.comhttps://github.com/getgrav/grav/security/advisories/GHSA-rr73-568v-28f8Exploit, Patch, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/getgrav/grav/security/advisories/GHSA-rr73-568v-28f8Exploit, Patch, Vendor Advisory
Impacted products
Vendor Product Version
getgrav grav *
getgrav grav 2.0.0
To clipboard 

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  "id": "CVE-2026-42609",
  "lastModified": "2026-05-14T18:16:48.450",
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.