> CVE-2026-45140 [CRITICAL]

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PUBLISHED
2026-09-17 21:17
MODIFIED
2026-09-17 21:17
CVSS_SCORE V3
9.8
EPSS (Prob. Exploit)
1.33%
Top 29.6%
DATA SOURCES:
NVD đź”— 2026-09-17 CWE MITRE đź”— 2026-10-01 FIRST EPSS đź”— 2026-10-15 GITHUB đź”— 2026-10-15 OSV đź”— 2026-09-21

> DESCRIPTION

Chamilo LMS is an open-source learning management system. Prior to 2.0.1, Chamilo LMS allows an unauthenticated remote attacker to execute arbitrary code on the server. The authoritative advisory does not identify the affected endpoint, component, input, or exploitation mechanism. This issue is fixed in version 2.0.1.

> 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:N/S:U/C:H/I:H/A:H
EXPLOITABILITY
3.9
IMPACT
5.9

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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
None (N)
Aucune interaction utilisateur nécessaire
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
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-22 CWE-94 CWE-219 CWE-434

> CWE DETAILED DESCRIPTIONS

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') - The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. | CWE-94: Improper Control of Generation of Code ('Code Injection') - The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. | CWE-219: Storage of File with Sensitive Data Under Web Root - The product stores sensitive data under the web document root with insufficient access control, which might make it accessible to untrusted parties. | CWE-434: Unrestricted Upload of File with Dangerous Type - The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

> GITHUB SECURITY ADVISORY

GHSA-g4c3-4g96-6g4m CRITICAL

Chamilo LMS CStudio upload flow allows unauthenticated remote code execution

AFFECTED PACKAGES:
COMPOSER / chamilo/chamilo-lms
<= 2.0.0
Fixed in: 2.0.1

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Chamilo LMS CStudio upload flow allows unauthenticated remote code execution

AFFECTED PACKAGES:
Unknown / Unknown
42 versions affected
ALIASES:
GHSA-g4c3-4g96-6g4m

> HISTORIQUE DES MODIFICATIONS

Première apparition
17/09/2026 21:17
Source: NVD
đź“Š ENRICHISSEMENT 01/10/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') - The product uses external input to construct a pathname that is intended to identify a file or directory that i...
Total des modifications: 1 Dernière mise à jour: 3 weeks ago

> REFERENCES

https://github.com/chamilo/chamilo-lms/commit/4bdba1b9a8820bd70c0809317775d7f6ea...
https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.1
https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-g4c3-4g96-6g4m
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