Medium severity · published Aug 10, 2026
CVE-2026-17021
Salon Booking System – Free Version < 10.30.34 - Unauthenticated Arbitrary Booking Total Tampering
5.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SB
Salon Booking System ·
before 10.30.34 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-17021
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-17021
wpscan.com
https://wpscan.com/vulnerability/fbbfa907-3efd-4050-9651-d3836af062a9/
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CVE-2026-17022
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7.5
CVE-2022-0920
Salon booking system < 7.6.3 - Customer+ Bookings/Customers Data Disclosure
7.2
CVE-2026-110031
Salon Booking System 10.17 - 10.31.10 - Salon Staff+ Privilege Escalation to Administrator via Case-Insensitive User Meta Key
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CVE-2026-110033
Salon Booking System < 10.31.11 - Salon Staff+ Stored XSS and SSRF via Salon REST 'image_url'