---
id: CVE-2026-45143
title: Chamilo LMS is an open-source learning management system
summary: >-
  Chamilo LMS is an open-source learning management system. From 2.0.0 through
  at least 2.1.0, Chamilo LMS stores private Message.content without server-side
  sanitization and renders it as HTML in
  assets/vue/views/message/MessageShow.vue a…
severity: critical
cvss: 9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H'
cwe:
  - CWE-79
vendor: chamilo
product: chamilo-lms
affected:
  - 'chamilo-lms >= 2.0.0, < 2.0.1'
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T21:17:12.600'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-45143'
references:
  - url: >-
      https://github.com/chamilo/chamilo-lms/commit/b2c91c021fc5ab7e91feb4927c4c676f77034ac5
    label: security-advisories@github.com
  - url: 'https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.1'
    label: security-advisories@github.com
  - url: >-
      https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-x88v-rg6r-vqq6
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T20:28:02.783Z'
epss: 0.00332
epssPercentile: 0.26523
---

## Overview

Chamilo LMS is an open-source learning management system. From 2.0.0 through at least 2.1.0, Chamilo LMS stores private Message.content without server-side sanitization and renders it as HTML in assets/vue/views/message/MessageShow.vue and public/main/template/default/message/view_message.html.twig. An authenticated low-privilege user, including a student, can directly address crafted message content to an administrator because the message creation flow permits a sender to select another user as the recipient. The content executes in the recipient's browser when the recipient opens the routine inbox or message view, without requiring a link click, and can expose session credentials or permit actions as the administrator. This vulnerability is fixed in 2.0.1.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.