> CVE-2026-28495 [CRITICAL]

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PUBLISHED
2026-03-10 20:16
MODIFIED
2026-03-10 20:16
CVSS_SCORE V3
9.6
EPSS (Prob. Exploit)
0.35%
Top 71.0%
DATA SOURCES:
NVD 🔗 2026-03-10 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-08 OSV 🔗 2026-11-08

> DESCRIPTION

GetSimple CMS is a content management system. The massiveAdmin plugin (v6.0.3) bundled with GetSimpleCMS-CE v3.3.22 allows an authenticated administrator to overwrite the gsconfig.php configuration file with arbitrary PHP code via the gsconfig editor module. The form lacks CSRF protection, enabling a remote unauthenticated attacker to exploit this via Cross-Site Request Forgery against a logged-in admin, achieving Remote Code Execution (RCE) on the web server.

> 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:N/UI:R/S:C/C:H/I:H/A:H
EXPLOITABILITY
2.8
IMPACT
6.0

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/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
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
Required (R)
Nécessite une action utilisateur (clic lien, ouverture fichier, etc.)
S (Périmètre)
Scope
Changed (C)
Impact s'étend au-delà du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale 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
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-352

> CWE DETAILED DESCRIPTIONS

CWE-352: Cross-Site Request Forgery - The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

GetSimple CMS has CSRF to Remote Code Execution via Arbitrary PHP Write in gsconfig.php

AFFECTED PACKAGES:
Unknown / Unknown
5 versions affected
ALIASES:
GHSA-92wv-q2jp-qg88

> HISTORIQUE DES MODIFICATIONS

Première apparition
10/03/2026 20:16
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:58
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-352: Cross-Site Request Forgery (CSRF) - The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could hav...
Nouvelle valeur:
CWE-352: Cross-Site Request Forgery - The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have origi...
📊 ENRICHISSEMENT 01/04/2026 06:02
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-352: Cross-Site Request Forgery (CSRF) - The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could hav...
Total des modifications: 2 Dernière mise à jour: 1 week ago

> REFERENCES

https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-92wv...
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