CVE-2026-13755 tickera CVE debrief

Who should care

Users of the Tickera – Sell Tickets & Manage Events plugin for WordPress, particularly those with contributor-level access and above, should be aware of this vulnerability. The vulnerability allows attackers to inject malicious scripts, which can lead to unauthorized actions on behalf of authenticated users. Website administrators and security teams should prioritize patching or mitigating this vulnerability to prevent potential attacks.

Technical summary

The Tickera – Sell Tickets & Manage Events plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'price_wrapper' Shortcode Attribute in all versions up to, and including, 3.6.0.0. This is due to insufficient input sanitization and output escaping. An authenticated attacker with contributor-level access and above can inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. However, successful execution of the injected script is limited to victims who have the referenced ticket ID present in their cart cookie.

Defensive priority

Medium priority due to the requirement for contributor-level access and specific conditions for exploitation.

Recommended defensive actions

• Update the Tickera – Sell Tickets & Manage Events plugin to a version beyond 3.6.0.0.
• Restrict contributor-level access and above to trusted users.
• Monitor for suspicious activity related to ticket IDs and cart cookies.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

Evidence is based on the CVE record and NVD detail. The CVE record was published on 2026-07-16T09:16:16.827Z and has not been modified since then. The NVD entry is currently 6.4, MEDIUM severity. The vulnerability affects the Tickera – Sell Tickets & Manage Events plugin for WordPress, specifically versions up to and including 3.6.0.0. The plugin is vulnerable to Stored Cross-Site Scripting via the 'price_wrapper' Shortcode Attribute due to insufficient input sanitization and output escaping. This allows authenticated attackers with contributor-level access and above to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. However, successful execution of the injected script is limited to victims who have the referenced ticket ID present in their cart cookie.

Official resources