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CVE-2026-33702

Full vulnerability record from the local CVENow database.

Description

Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, Chamilo LMS contains an Insecure Direct Object Reference (IDOR) vulnerability in the Learning Path progress saving endpoint. The file lp_ajax_save_item.php accepts a uid (user ID) parameter directly from $_REQUEST and uses it to load and modify another user's Learning Path progress — including score, status, completion, and time — without verifying that the requesting user matches the target user ID. Any authenticated user enrolled in a course can overwrite another user's Learning Path progress by simply changing the uid parameter in the request. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3.

Severity
HIGH
CVSS score
7.1 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-04-10 19:16:23.177000
Last modified
2026-10-26 22:10:00.163000
View original CVE JSON
{
  "id": "CVE-2026-33702",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-10T19:16:23.177",
  "lastModified": "2026-10-26T22:10:00.163",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Chamilo LMS is a learning management system. Prior to 1.11.38 and 2.0.0-RC.3, Chamilo LMS contains an Insecure Direct Object Reference (IDOR) vulnerability in the Learning Path progress saving endpoint. The file lp_ajax_save_item.php accepts a uid (user ID) parameter directly from $_REQUEST and uses it to load and modify another user's Learning Path progress — including score, status, completion, and time — without verifying that the requesting user matches the target user ID. Any authenticated user enrolled in a course can overwrite another user's Learning Path progress by simply changing the uid parameter in the request. This vulnerability is fixed in 1.11.38 and 2.0.0-RC.3."
    },
    {
      "lang": "es",
      "value": "Chamilo LMS es un sistema de gestión del aprendizaje. Antes de 1.11.38 y 2.0.0-RC.3, Chamilo LMS contiene una vulnerabilidad de Referencia Directa Insegura a Objeto (IDOR) en el endpoint de guardado de progreso de la Ruta de Aprendizaje. El archivo lp_ajax_save_item.PHP acepta un parámetro uid (ID de usuario) directamente de $_REQUEST y lo utiliza para cargar y modificar el progreso de la Ruta de Aprendizaje de otro usuario - incluyendo puntuación, estado, finalización y tiempo - sin verificar que el usuario solicitante coincida con el ID de usuario objetivo. Cualquier usuario autenticado inscrito en un curso puede sobrescribir el progreso de la Ruta de Aprendizaje de otro usuario simplemente cambiando el parámetro uid en la solicitud. Esta vulnerabilidad está corregida en 1.11.38 y 2.0.0-RC.3."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "chamilo",
          "product": "chamilo-lms",
          "versions": [
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              "version": "< 1.11.38",
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            {
              "version": ">= 2.0.0-alpha.1, < 2.0.0-RC.3",
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            }
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          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
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          "id": "CVE-2026-33702",
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      "source": "[email protected]",
      "type": "Secondary",
      "description": [
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