Sources: National Vulnerability Database, CVE.org, CISA KEV, FIRST EPSS
CVE-2026-116751 Overview
The Booking for Appointments and Events Calendar – Amelia Pro plugin for WordPress is vulnerable to time-based SQL Injection via the 'tag[] (array KEYS)' parameter in all versions up to, and including, 9.9.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. WordPress's wp_magic_quotes escapes array values but not array keys, meaning attacker-controlled tag[] array keys reach EventRepository::getFilteredIds() completely unescaped and can be crafted to defeat the plugin's Statement::execute placeholder binder via overlapping strtr() substitution keys.
Critical Impact
Affected Products
- WordPress Booking for Appointments and Events Calendar – Amelia Pro: see the vendor advisory for the exact affected versions
Discovery Timeline
- 2026-11-07: CVE-2026-116751 published to the National Vulnerability Database by security@wordfence.com
- 2026-11-07: last updated in the NVD database
Technical Details for CVE-2026-116751
Vulnerability Analysis
CVE-2026-116751 is a SQL Injection weakness (CWE-89: SQL Injection) in WordPress Booking for Appointments and Events Calendar – Amelia Pro. Based on its CVSS vector, the flaw can be reached over the network, needs no login, and needs no user interaction. Untrusted input changes the meaning of a database query.
With a CVSS base score of 7.5, apply the vendor fix and confirm exposure on internet facing and business critical assets first.
Root Cause
The weakness is classified as CWE-89: SQL Injection. Untrusted input changes the meaning of a database query.
Attack Vector
Based on the CVSS vector, the flaw can be reached over the network, needs no login, and needs no user interaction. Attack complexity is low complexity.
No exploitation in the wild is confirmed by CISA at the time of the last update. Check the references below for any vendor or researcher proof of concept.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Detection Methods for CVE-2026-116751
Detection Strategies
- Inventory every instance of WordPress Booking for Appointments and Events Calendar – Amelia Pro and compare the running version with the affected range above.
- Check external attack surface scans for internet facing instances of the component.
- Run an authenticated vulnerability scan once your scanner ships a check for this CVE.
Monitoring Recommendations
- Forward WordPress Booking for Appointments and Events Calendar – Amelia Pro application, access and audit logs to your SIEM for retrospective hunting.
- Alert on new processes, configuration changes or outbound connections from the affected service.
- Track the vendor advisory and the CISA KEV catalog for changes in exploitation status.
How to Mitigate CVE-2026-116751
Immediate Actions Required
- Apply the fixed version of WordPress Booking for Appointments and Events Calendar – Amelia Pro named in the vendor advisory.
- Prioritize internet facing and business critical instances first.
- Rescan after the change to confirm the exposure is closed.
Patch Information
Use the fixed version listed in the vendor advisory for WordPress Booking for Appointments and Events Calendar – Amelia Pro.
Workarounds
- If patching must wait, restrict network access to the affected service and place it behind authentication or a web application firewall rule.
CWE References
- CWE-89: SQL Injection More CVEs with this weakness
Technical References
This entry is built directly from NVD, CISA KEV and EPSS data. Verify fixed versions in the vendor advisory before you deploy.
Frequently asked questions
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