WordPress security changelog
MEDIUM CVE-2026-4668 Deferred

Booking for Appointments and Events Calendar – Amelia: SQL injection

Booking for Appointments and Events Calendar – Amelia is affected by SQL injection. Exploitation requires an authenticated WordPress account. A successful request can alter database queries and expose or modify WordPress data. The published affected range is <= 2.1.2.

CVE / CNA score 6.5 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Booking for Appointments and Events Calendar – Amelia
Plugin slug
ameliabooking
Affected
<= 2.1.2
Safe version
> 2.1.2
Published
Apr 01, 2026
Weakness
CWE-89 — Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

This CVE was published Apr 01, 2026 and is one of 21 known issues for this plugin.

Update, patch or deactivate.

Update Booking for Appointments and Events Calendar – Amelia to a release after 2.1.2, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

The Booking for Appointments and Events Calendar - Amelia plugin for WordPress is vulnerable to SQL Injection via the `sort` parameter in the payments listing endpoint in all versions up to, and including, 2.1.2. This is due to insufficient escaping on the user-supplied `sort` parameter and lack of sufficient preparation on the existing SQL query in `PaymentRepository.php`, where the sort field is interpolated directly into an ORDER BY clause without sanitization or whitelist validation. PDO prepared statements do not protect ORDER BY column names. GET requests also skip Amelia's nonce validation entirely. This makes it possible for authenticated attackers, with Manager-level (`wpamelia-manager`) access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database via time-based blind SQL injection.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Primary and upstream sources