CVE-2026-6449

CVE-2026-6449 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-285.

Key facts

• Severity: Medium (CVSS 3.x base score 5.3)
• EPSS exploit prediction: 0% (37th percentile)
• Actively exploited: Not listed in CISA KEV
• EU (EUVD) id: EUVD-2026-26758
• Weakness: CWE-285
• Published: 2026-05-02
• Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-6449?

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.

How severe is CVE-2026-6449?

CVE-2026-6449 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-6449 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-6449?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-6449 have an EU (EUVD) identifier?

Yes. CVE-2026-6449 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26758.

When was CVE-2026-6449 published?

CVE-2026-6449 was published on 2026-05-02 and last updated on 2026-06-17.

References

• 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

Other CWE-285 (Improper Authorization) vulnerabilities

• CVE-2025-65041 — Critical (CVSS 10.0): Improper authorization in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.
• CVE-2023-33189 — Critical (CVSS 10.0): Pomerium is an identity and context-aware access proxy. With specially crafted requests, incorrect authorization…
• CVE-2022-2595 — Critical (CVSS 10.0): Improper Authorization in GitHub repository kromitgmbh/titra prior to 0.79.1.
• CVE-2021-28799 — Critical (CVSS 10.0): An improper authorization vulnerability has been reported to affect QNAP NAS running HBS 3 (Hybrid Backup Sync. ) If…
• CVE-2026-34048 — Critical (CVSS 9.9): Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to…
• CVE-2026-5412 — Critical (CVSS 9.9): In Juju versions prior to 2.9.57 and 3.6.21, an authorization issue exists in the Controller facade. An authenticated…

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