Tickera Plugin up to 3.6.0.1 on WordPress add_required_capabilities tc_event_filter sql injection

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Tickera Plugin up to 3.6.0.1. This vulnerability affects the function add_required_capabilities. This manipulation of the argument tc_event_filter causes sql injection. This vulnerability is registered as CVE-2026-15761. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability has been found in Tickera Plugin up to 3.6.0.1 and classified as problematic. Affected by this vulnerability is the function add_required_capabilities. The manipulation of the argument tc_event_filter with an unknown input leads to a sql injection vulnerability. The CWE definition for the vulnerability is CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The Tickera – Sell Tickets & Manage Events plugin for WordPress is vulnerable to generic SQL Injection via the 'tc_event_filter' parameter in all versions up to, and including, 3.6.0.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with staff-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The vulnerable code path is reachable by users holding the plugin's custom Staff role, as the plugin's add_required_capabilities() function grants that role the edit_tc_tickets_instances capability, providing access to the tc_tickets_instances admin list screen where the filter is applied.

It is possible to read the advisory at wordfence.com. This vulnerability is known as CVE-2026-15761 since 07/14/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation requires an enhanced level of successful authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/23/2026). The attack technique deployed by this issue is T1505 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Name

• Tickera Plugin

Version

• 3.6.0.0
• 3.6.0.1

CPE 2.3info

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CPE 2.2info

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