CVE-2026-110034lowCWE-20

CVE-2026-110034: low-severity vulnerability in Salon Booking System

Salon Booking System < 10.31.11 - Unauthenticated Negative Booking Total via Discount Code

Published

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28Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 3.7epss 0.2%
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected products
Unknown · Salon Booking System
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Salon Booking System

In the same product, most dangerous first.

CVE-2026-17022HIGHSalon Booking System – Free Version < 10.30.34 - Unauthenticated Booking Information Disclosure via Booking WizardEPSS 0.4%CVE-2026-17021MEDIUMSalon Booking System – Free Version < 10.30.34 - Unauthenticated Arbitrary Booking Total TamperingEPSS 0.3%CVE-2026-11887MEDIUMSalon Booking System < 10.30.20 - Subscriber+ Booking Approval BypassEPSS 0.3%CVE-2026-17023MEDIUMSalon Booking System – Free Version <= 10.30.33 - Unauthenticated Google Calendar Connection Hijack via OAuth CallbackEPSS 0.3%CVE-2026-17020MEDIUMSalon Booking System – Free Version <= 10.31.0 - Subscriber+ Arbitrary Booking PII DisclosureEPSS 0.3%CVE-2026-110031HIGHSalon Booking System 10.17 - 10.31.10 - Salon Staff+ Privilege Escalation to Administrator via Case-Insensitive User Meta KeyEPSS 0.2%