CVE-2026-27406 Overview
CVE-2026-27406 is a Sensitive Data Exposure vulnerability affecting the My Tickets WordPress plugin developed by Joe Dolson. The vulnerability stems from the Insertion of Sensitive Information Into Sent Data (CWE-201), which allows attackers to retrieve embedded sensitive data from the application. This issue affects all versions of My Tickets through version 2.1.0.
Critical Impact
Attackers can exploit this vulnerability to access sensitive user information that is inadvertently included in data transmissions, potentially exposing private ticket details, user credentials, or other confidential information processed by the plugin.
Affected Products
- My Tickets WordPress Plugin versions up to and including 2.1.0
- WordPress installations running vulnerable My Tickets versions
Discovery Timeline
- 2026-03-05 - CVE-2026-27406 published to NVD
- 2026-03-05 - Last updated in NVD database
Technical Details for CVE-2026-27406
Vulnerability Analysis
This vulnerability is classified under CWE-201 (Insertion of Sensitive Information Into Sent Data), indicating that the My Tickets plugin improperly handles sensitive information during data transmission. When processing ticket-related operations, the plugin inadvertently includes sensitive data within responses or requests that are accessible to unauthorized parties.
The core issue lies in how the plugin constructs and sends data payloads. Sensitive information that should remain server-side or be properly sanitized before transmission is instead embedded within the data sent to clients or external services. This architectural flaw enables attackers to intercept or retrieve confidential information by simply analyzing the data exchanged during normal plugin operations.
Root Cause
The root cause of this vulnerability is improper data handling within the My Tickets plugin. The application fails to adequately filter or exclude sensitive information before including it in outbound data transmissions. This could manifest in various ways, such as exposing user details in API responses, including sensitive parameters in client-side JavaScript, or embedding private data within form submissions or AJAX calls.
Attack Vector
An attacker can exploit this vulnerability by interacting with the My Tickets functionality while monitoring network traffic or examining client-side data. Since sensitive information is embedded within transmitted data, the attacker does not need elevated privileges to access this information—they simply need to observe or capture the data being sent during normal plugin operations.
The attack can be performed remotely and may not require authentication, depending on how the vulnerable functionality is exposed. Attackers could potentially harvest sensitive ticket information, user details, or other confidential data processed by the ticketing system.
Detection Methods for CVE-2026-27406
Indicators of Compromise
- Unusual access patterns to My Tickets plugin endpoints or API routes
- Evidence of network traffic interception or monitoring targeting WordPress ticket functionality
- Unexpected data extraction attempts targeting ticket-related database tables
- Anomalous requests to ticket management pages from unauthorized sources
Detection Strategies
- Monitor WordPress access logs for suspicious requests to My Tickets plugin endpoints
- Implement Web Application Firewall (WAF) rules to detect abnormal parameter patterns in ticket-related requests
- Review plugin API responses for inadvertent sensitive data inclusion
- Conduct periodic security audits of data transmitted by the My Tickets plugin
Monitoring Recommendations
- Enable detailed logging for the My Tickets plugin and associated WordPress functionality
- Monitor outbound network traffic from WordPress servers for sensitive data patterns
- Implement Data Loss Prevention (DLP) solutions to detect sensitive information in HTTP responses
- Set up alerts for unusual access volumes to ticket management endpoints
How to Mitigate CVE-2026-27406
Immediate Actions Required
- Update the My Tickets plugin to a patched version when available from the developer
- Review and audit current plugin configurations for any exposed sensitive data
- Implement network-level monitoring to detect potential exploitation attempts
- Consider temporarily disabling the plugin if handling highly sensitive ticket data until a patch is available
Patch Information
Users should monitor the official WordPress plugin repository and the developer's website for security updates addressing this vulnerability. According to the Patchstack Vulnerability Report, version 2.1.0 and earlier are affected. Upgrade to the latest available version once a security patch is released.
Workarounds
- Restrict access to My Tickets administrative functionality to trusted IP addresses only
- Implement additional authentication layers for ticket management operations
- Deploy a Web Application Firewall (WAF) with rules to filter sensitive data from responses
- Audit and minimize the sensitive data processed by the ticketing system until patched
- Consider using HTTPS exclusively to encrypt data in transit and reduce interception risks
# WordPress CLI command to check My Tickets plugin version
wp plugin list --name=my-tickets --fields=name,version,status
# Disable My Tickets plugin temporarily if needed
wp plugin deactivate my-tickets
# Check for available updates
wp plugin update my-tickets --dry-run
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
