> CVE-2026-42609 [HIGH]

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PUBLISHED
2026-05-11 16:17
MODIFIED
2026-05-11 16:17
CVSS_SCORE V3
8.1
EPSS (Prob. Exploit)
0.58%
Top 53.0%
DATA SOURCES:
NVD 🔗 2026-05-11 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25

> DESCRIPTION

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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
EXPLOITABILITY
2.8
IMPACT
5.2

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
Low (L)
Authentifié avec compte utilisateur basique
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-269 CWE-285 CWE-639 CWE-837

> CWE DETAILED DESCRIPTIONS

CWE-269: Improper Privilege Management - The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. | CWE-285: Improper Authorization - The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. | CWE-639: Authorization Bypass Through User-Controlled Key - The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. | CWE-837: Improper Enforcement of a Single, Unique Action - The product requires that an actor should only be able to perform an action once, or to have only one unique action, but the product does not enforce or incorrectly enforces this restriction.

> HISTORIQUE DES MODIFICATIONS

Première apparition
11/05/2026 16:17
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-269: Improper Privilege Management - The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. | CWE-285: Impr...
Nouvelle valeur:
CWE-269: Improper Privilege Management - The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. | CWE-285: Impr...
📊 ENRICHISSEMENT 01/06/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-269: Improper Privilege Management - The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. | CWE-285: Impr...
Total des modifications: 2 Dernière mise à jour: 6 days ago

> REFERENCES

https://github.com/getgrav/grav/commit/5a12f9be8314682c8713e569e330f11805d0a663
https://github.com/getgrav/grav/commit/c66dfeb5ff679a1667678c6335eb9ff3255dfc47
https://github.com/getgrav/grav/commit/d904efc33e03ebb597afde8d3368b28cf0423632
https://github.com/getgrav/grav/security/advisories/GHSA-rr73-568v-28f8
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