> CVE-2025-67849 [HIGH]

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PUBLISHED
2026-02-03 11:15
MODIFIED
2026-02-03 11:15
CVSS_SCORE V3
7.3
EPSS (Prob. Exploit)
0.26%
Top 81.6%
DATA SOURCES:
NVD 🔗 2026-02-03 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-08 GITHUB 🔗 2026-11-04 OSV 🔗 2026-11-08

> DESCRIPTION

A flaw was found in Moodle. This cross-site scripting (XSS) vulnerability, caused by improper sanitization of AI prompt responses, allows attackers to inject malicious HTML or script into web pages. When other users view these compromised pages, their sessions could be stolen, or the user interface could be manipulated.

> 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:R/S:U/C:H/I:H/A:N
EXPLOITABILITY
2.1
IMPACT
5.2

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
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
Required (R)
Nécessite une action utilisateur (clic lien, ouverture fichier, etc.)
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre 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
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-79

> CWE DETAILED DESCRIPTIONS

CWE-79: Improper Neutralization of Input During Web Page Generation - The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

> GITHUB SECURITY ADVISORY

GHSA-mhf6-pp52-8wqj HIGH

Moodle Cross-site Scripting (XSS) vulnerability

AFFECTED PACKAGES:
COMPOSER / moodle/moodle
>= 5.1.0-beta, < 5.1.1
Fixed in: 5.1.1
COMPOSER / moodle/moodle
>= 5.0.0-beta, < 5.0.4
Fixed in: 5.0.4
COMPOSER / moodle/moodle
>= 4.5.0-beta, < 4.5.8
Fixed in: 4.5.8
COMPOSER / moodle/moodle
>= 4.4.0-beta, < 4.4.12
Fixed in: 4.4.12
COMPOSER / moodle/moodle
< 4.1.22
Fixed in: 4.1.22

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Moodle: moodle: cross-site scripting (xss) via improper sanitization of ai prompt responses

AFFECTED PACKAGES:
Unknown / Unknown
14 versions affected
ALIASES:
BIT-moodle-2025-67849, GHSA-mhf6-pp52-8wqj

> HISTORIQUE DES MODIFICATIONS

Première apparition
03/02/2026 11:15
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:58
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') - The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in...
Nouvelle valeur:
CWE-79: Improper Neutralization of Input During Web Page Generation - The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a...
📊 ENRICHISSEMENT 01/03/2026 06:46
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') - The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in...
Total des modifications: 2 Dernière mise à jour: 1 week ago

> REFERENCES

https://access.redhat.com/security/cve/CVE-2025-67849
https://bugzilla.redhat.com/show_bug.cgi?id=2423835
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