CVE-2025-58611: Tickera Event Ticketing CSRF Vulnerability

CVE-2025-58611 Overview

CVE-2025-58611 is a Cross-Site Request Forgery (CSRF) vulnerability in the Tickera event ticketing system plugin for WordPress. The flaw affects all versions of Tickera up to and including 3.5.5.6. An attacker can trick an authenticated user into submitting forged requests that perform state-changing actions without their consent. Exploitation requires user interaction, typically by luring a victim to a malicious page while authenticated to the target WordPress site. The vulnerability is tracked as CWE-352: Cross-Site Request Forgery.

Critical Impact
Attackers can perform unauthorized actions on behalf of authenticated Tickera users by exploiting missing CSRF protections, potentially modifying ticketing configuration or data integrity within the plugin.

Affected Products

Tickera Event Ticketing System WordPress Plugin
All versions from n/a through 3.5.5.6
WordPress installations running the vulnerable plugin

Discovery Timeline

2025-09-03 - CVE-2025-58611 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-58611

Vulnerability Analysis

The Tickera plugin fails to validate the origin or authenticity of state-changing HTTP requests. Specifically, the plugin does not enforce WordPress nonce verification or equivalent anti-CSRF tokens on sensitive endpoints. An attacker can craft a malicious web page that issues requests to a vulnerable Tickera endpoint. When an authenticated user visits the attacker-controlled page, the browser automatically includes their session cookies with the forged request.

The request executes with the victim's privileges. Successful exploitation results in limited integrity impact but no direct data disclosure or service disruption based on the assigned attack profile. User interaction is required, which reduces the practical exploitation surface but does not eliminate risk in phishing scenarios.

Root Cause

The root cause is missing or improperly implemented CSRF protection on plugin request handlers. WordPress plugins typically defend against CSRF using wp_nonce_field() and check_admin_referer() or wp_verify_nonce(). Tickera versions up to 3.5.5.6 do not consistently apply these controls to all state-changing operations.

Attack Vector

The attack vector is network-based and requires user interaction. An attacker hosts a malicious page containing an auto-submitting form or JavaScript that targets a Tickera endpoint. The attacker then delivers the link through phishing, social media, or a compromised website. When the authenticated victim loads the page, the browser sends the forged request with valid session credentials, executing the attacker's chosen action.

No verified public exploit code is available at the time of publication. Refer to the Patchstack Vulnerability Report for additional technical details.

Detection Methods for CVE-2025-58611

Indicators of Compromise

Unexpected changes to Tickera plugin configuration, tickets, or event settings made by legitimate users
HTTP POST requests to Tickera endpoints with Referer or Origin headers pointing to external domains
Requests targeting Tickera admin actions lacking a valid _wpnonce parameter

Detection Strategies

Inspect web server access logs for cross-origin requests to WordPress admin paths containing tickera or tc_ action parameters
Correlate authenticated administrator sessions with concurrent visits to untrusted external domains
Deploy a web application firewall (WAF) rule to flag Tickera endpoint requests missing nonce tokens

Monitoring Recommendations

Enable WordPress audit logging to capture all administrative actions performed through the Tickera plugin
Monitor for anomalous ticket creation, deletion, or configuration modifications outside normal business hours
Alert on HTTP requests to Tickera endpoints where the Referer header does not match the site's own domain

How to Mitigate CVE-2025-58611

Immediate Actions Required

Update the Tickera plugin to a version later than 3.5.5.6 as soon as the vendor publishes a patched release
Restrict administrator and ticketing account access to trusted networks where feasible
Train users with elevated Tickera privileges to avoid clicking untrusted links while logged into the WordPress admin console

Patch Information

At the time of publication, users should consult the Patchstack Vulnerability Report for the latest fixed version details and vendor guidance. Apply the vendor-supplied update through the WordPress plugin dashboard once available.

Workarounds

Deploy a WAF rule to block requests to Tickera endpoints that lack a valid WordPress nonce parameter
Enforce SameSite=Lax or SameSite=Strict attributes on WordPress session cookies to reduce cross-site request risk
Temporarily disable the Tickera plugin on affected sites until a patched version is installed

bash

# Configuration example: enforce SameSite cookie attribute via WordPress
# Add to wp-config.php or a must-use plugin
@ini_set('session.cookie_samesite', 'Strict');
@ini_set('session.cookie_secure', '1');
@ini_set('session.cookie_httponly', '1');