WordPress Salon booking system plugin <= 10.30.26 - Broken Authentication vulnerability

published 2026-08-13 2 mo ago modified 2026-08-14 2 mo ago also EUVD-2026-57873

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits: 0; none known

Unauthenticated Broken Authentication in Salon booking system <= 10.30.26 versions.

Patch / fix

fixed in 1

Dimitri Grassi Salon booking system 10.30.27

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 2 mo ago (2026-08-13)

Exploit prediction

0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Dimitri Grassi Salon booking system

Classification

Weakness

CWE-288 Authentication Bypass Using an Alternate Path or Channel

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/wordpress/plugin/salon-booking-system/vulnerability/wordpress-salon-booking-system-plugin-10-30-26-b
vdb-entry

Sources

CVE List CVE-2026-66453
NVD CVE-2026-66453

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary