CVE-2026-6449 | Booking for Appointments and Events Calendar – Amelia <= 2.1.2 - Unauthenticated Authorization Bypass via Remote Approval Endpoint

The Booking for Appointments and Events Calendar – Amelia plugin for WordPress is vulnerable to Improper Authorization in all versions up to, and including, 2.1.2. This is due to a logical short-circuit flaw in authorization logic that causes token validation to be entirely skipped when a booking has a 'waiting' status. This makes it possible for unauthenticated attackers to approve any booking that is in 'waiting' status by sending a crafted request to the publicly-accessible admin-ajax endpoint.

Published: 2026-05-02 Last update: 2026-05-05 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-6449 is rated Low Risk (22/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.01%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-6449

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-02 — 0.01% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-6449

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]

Weakness enumeration for CVE-2026-6449

GitHub Security Advisory for CVE-2026-6449

GHSA-w8hw-gcrw-wj77 · Severity: medium — The Booking for Appointments and Events Calendar – Amelia plugin for WordPress is vulnerable to...

Affected software / configurations for CVE-2026-6449

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-6449

URL Tags
https://plugins.trac.wordpress.org/browser/ameliabooking/tags/2.1.2/src/Application/Commands/Booking/Appointment/ApproveBookingRemotelyCommandHandler.php#L97
https://plugins.trac.wordpress.org/browser/ameliabooking/tags/2.1.2/src/Application/Controller/Booking/Appointment/ApproveBookingRemotelyController.php#L41
https://plugins.trac.wordpress.org/browser/ameliabooking/tags/2.1.2/src/Application/Services/User/UserApplicationService.php#L647
https://plugins.trac.wordpress.org/browser/ameliabooking/trunk/src/Application/Commands/Booking/Appointment/ApproveBookingRemotelyCommandHandler.php#L97
https://plugins.trac.wordpress.org/browser/ameliabooking/trunk/src/Application/Controller/Booking/Appointment/ApproveBookingRemotelyController.php#L41
https://plugins.trac.wordpress.org/browser/ameliabooking/trunk/src/Application/Services/User/UserApplicationService.php#L647
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3516430%40ameliabooking&new=3516430%40ameliabooking&sfp_email=&sfph_mail=
https://www.wordfence.com/threat-intel/vulnerabilities/id/8d7cc468-eeba-497f-9e11-79d4bebdd7a2?source=cve
cvelogic Threat Intelligence