CVE-2026-17021 Salon Booking System – Free Version < 10.30.34 - Unauthenticated Arbitrary Booking Total Tampering
Unauthenticated attackers can tamper with the total cost of arbitrary bookings in the Salon Booking System WordPress plugin due to missing authorization checks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-17021?
CVE-2026-17021 is a medium-severity missing authorization vulnerability in Unknown Salon Booking System, published on 10 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Salon Booking System WordPress plugin before 10.30.34 does not properly restrict access to some of its booking-modification AJAX actions and does not verify ownership of the targeted booking, allowing unauthenticated users to tamper with the stored total of arbitrary bookings.
Weakness: CWE-862
Which versions are affected by CVE-2026-17021?
How do I fix CVE-2026-17021?
No fix has been published for CVE-2026-17021 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-17021 being exploited?
There is no known exploitation of CVE-2026-17021 in the wild and no public exploit code.
Sources
Also known as GHSA-jf35-5rcj-7rqm.