Subtraction Vulnerability in Salon Booking System Plugin for WordPress
CVE-2026-110034

3.7LOW

Key Information:

Vendor

WordPress
Status
Salon Booking System
Vendor
CVE Published:
19 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-110034?

The Salon Booking System for WordPress, prior to version 10.31.11, has a vulnerability that permits unauthenticated users to apply a valid discount code when booking appointments. By not enforcing a minimum limit, the plugin allows the total booking amount to become negative, leading to distortions in booking management and potential financial loss for service providers.

Affected Version(s)

Salon Booking System 0 < 10.31.11

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-110034 - Proof of Concept

References

https://wpscan.com/vulnerability/e3a64d4d-92db-4dbc-a0b5-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
3.7
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

vuxvinh
WPScan
.