Description
The Smart Appointment & Booking plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check and a nonce validation logic flaw in the saab_cancel_booking() function in all versions up to, and including, 1.0.8. The nonce check uses && (AND) instead of || (OR), which means providing any value for the security parameter causes the entire check to be skipped. This makes it possible for unauthenticated attackers to cancel arbitrary bookings by supplying a predictable booking ID.
Published: 2026-05-12
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 13 May 2026 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Wordpress
Wordpress wordpress
Zealopensource
Zealopensource smart Appointment & Booking
Vendors & Products Wordpress
Wordpress wordpress
Zealopensource
Zealopensource smart Appointment & Booking

Tue, 12 May 2026 13:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 12 May 2026 08:30:00 +0000

Type Values Removed Values Added
Description The Smart Appointment & Booking plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check and a nonce validation logic flaw in the saab_cancel_booking() function in all versions up to, and including, 1.0.8. The nonce check uses && (AND) instead of || (OR), which means providing any value for the security parameter causes the entire check to be skipped. This makes it possible for unauthenticated attackers to cancel arbitrary bookings by supplying a predictable booking ID.
Title Smart Appointment & Booking <= 1.0.8 - Missing Authorization to Unauthenticated Arbitrary Booking Cancellation
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}


Subscriptions

Wordpress Wordpress
Zealopensource Smart Appointment & Booking
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-05-12T12:47:37.797Z

Reserved: 2026-04-06T11:20:41.603Z

Link: CVE-2026-5693

cve-icon Vulnrichment

Updated: 2026-05-12T12:47:34.077Z

cve-icon NVD

Status : Deferred

Published: 2026-05-12T09:16:54.953

Modified: 2026-05-12T14:03:52.757

Link: CVE-2026-5693

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-13T10:39:31Z

Weaknesses