CVE-2026-15761

Tickera <= 3.6.0.1 - Authenticated (Staff+) SQL Injection via 'tc_event_filter' Parameter

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.

We have discovered 832 live websites that are affected by CVE-2026-15761.

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Affected Software

Product  Tickera Event Ticketing System
Category Wordpress Plugins
Vulnerable Domains832 live websites (100% of Tickera Event Ticketing System install base)
Vulnerable Versions
  • from 0 through 3.6.0.1
Vulnerable Versions Count79 versions ( 100% of all versions)


Common Weakness Enumeration

CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')



Details

  • Published - Jul 23, 2026
  • Updated - Jul 23, 2026

Credits

  • Wordfence PRISM (finder)

Website Distribution by Country

Number of websites using CVE-2026-15761
United States230 websites


Germany104 websites
Italy80 websites
Netherlands62 websites
France55 websites
GB34 websites
Spain25 websites
Canada22 websites
Australia20 websites
Belgium15 websites

Website Distribution by TLD

Number of websites using CVE-2026-15761
.com307 websites
.org76 websites
.it63 websites
.nl56 websites
.de48 websites
.co.uk17 websites
.fr16 websites
.be15 websites
.com.au12 websites
.ch11 websites

Vulnerable Versions

Vulnerable versions are highlighted in red

Websites affected by CVE-2026-15761

Top websites that are affected by CVE-2026-15761. Please click on the "Contact us" link to get more information.
DomainCountryRankContacts
******************.org United States***,***
*************.org United States***,***
*****.org United States***,***
********************.ro Romania***,***
*****.***************.com United States***,***
********.de Germany***,***
*************.org United States***,***
*******************.ch Switzerland***,***
*************.com Germany***,***
***********.it France***,***
See full domain list

FAQ

CVE-2026-15761 is Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in Tickera Event Ticketing System
A total of 832 websites have been identified as vulnerable to CVE-2026-15761, based on global website indexing conducted by WebTechSurvey.
The Tickera Event Ticketing System is affected by the CVE-2026-15761 vulnerability.
Tickera Event Ticketing System versions up to and including 3.6.0.1 are vulnerable to CVE-2026-15761.

References