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VULNERABILITIES

CVE-2026-77689 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

The Booking for Appointments and Events Calendar WordPress plugin before 9.8.1 does not verify that a payment was actually taken before recording a booking as paid, trusting the payment gateway named in a public, unauthenticated booking request even when the site has never configured that gateway. This lets an unauthenticated attacker obtain confirmed, fully paid appointments and events without any payment being collected.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CNA: CISA-ADPCVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://wpscan.com/vulnerability/ac597716-193d-419f-b55c-802ee979385e/ [email protected]AdvisoryExploitRemedy

Weakness Enumeration

CWE-IDCWE NameSource
CWE-284Improper Access ControlCISA-ADP

Affected Products

ProductVersions
Booking for Appointments and Events Calendar
< 9.8.1 (semver)

CPE

  • No CPEs found in CPE dictionary for this product.

Remediation

  • Upgrade: 9.8.1moderate effort

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-77689
NVD Published Date:
Sep 12, 2026
NVD Last Modified:
Sep 14, 2026
Source:
[email protected]
CVE-2026-77689 Details - Not Deferred