CVE-2026-31939
Chamilo LMS is a learning management system. Prior to 1.11.38, there is a path traversal in main/exercise/savescores.php leading to arbitrary file feletion. User input from $_REQUEST['test'] is concatenated directly into filesystem path without canonicalization or traversal checks. This vulnerability is fixed in 1.11.38.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
- Puntuación base: 8.3
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.53%
- Percentil entre todas las CVEs puntuadas: 43
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1210Exploitation of Remote Serviceslateral movement75 % - Impacto principal
T1565.002Transmitted Data Manipulationimpact85 % - Impacto secundario
T1005Data from Local Systemcollection60 %
AV:N, PR:L: acceso remoto con autenticación requiere T1210. CWE-22 (path traversal) permite manipular rutas para eliminar archivos (T1565.002) y potencialmente acceder a datos (T1005).
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-22, CWE-73
Referencias
- https://github.com/chamilo/chamilo-lms/commit/4dddcc19d36119da27b7c49eb84a035800abae78
- https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.38
- https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-8q8c-v75x-q2hx
- https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-8q8c-v75x-q2hx
JSON original (NVD)
Mostrar
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