CVE-2025-27299: MyTicket Events Path Traversal Flaw

CVE-2025-27299 Overview

CVE-2025-27299 is a path traversal vulnerability affecting the WP Asia MyTicket Events plugin for WordPress. The flaw exists in versions up to and including 1.2.4 and stems from improper limitation of a pathname to a restricted directory [CWE-22]. Unauthenticated attackers can exploit the issue over the network to read files outside the intended directory scope. The vulnerability produces limited information disclosure without impacting integrity or availability. Patchstack published the advisory for this WordPress plugin issue, and NVD assigned a medium severity rating.

Critical Impact
Unauthenticated remote attackers can read files outside the intended directory, exposing plugin configuration data and other non-arbitrary file contents accessible to the web server.

Affected Products

WP Asia MyTicket Events plugin (myticket-events) for WordPress
All versions from initial release through 1.2.4
WordPress sites running the vulnerable plugin build

Discovery Timeline

2025-04-17 - CVE-2025-27299 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-27299

Vulnerability Analysis

The vulnerability resides in the MyTicket Events plugin, which fails to properly restrict file path input supplied through a request parameter. Attackers can supply crafted path sequences to traverse beyond the plugin's designated directory. The Patchstack advisory classifies the issue as a non-arbitrary file read, meaning the readable file set is constrained but still exposes sensitive content.

The attack vector is network-based, requires no authentication, and needs no user interaction. Exploitation impacts confidentiality only, with no reported effect on integrity or availability. The EPSS score is 0.43% (percentile 34.9) as of the most recent scoring update, indicating a low near-term exploitation likelihood.

Root Cause

The plugin accepts a file path or filename parameter from an HTTP request and passes it to a file read routine without normalizing or validating the resolved path. Because the code does not enforce a canonical base directory check, sequences such as ../ allow the resolved path to escape the intended location. Missing input sanitization on the path parameter is the direct root cause [CWE-22].

Attack Vector

An attacker sends an HTTP request to the vulnerable plugin endpoint with a manipulated file parameter containing directory traversal sequences. The plugin returns the contents of the resolved file to the requester. Because the endpoint does not require authentication, exploitation is achievable by any remote attacker who can reach the WordPress site. The Patchstack report characterizes the outcome as non-arbitrary file read, so the reachable file types are limited by the plugin's read logic and web server permissions.

See the Patchstack WordPress Vulnerability Report for advisory details.

Detection Methods for CVE-2025-27299

Indicators of Compromise

HTTP requests to MyTicket Events plugin endpoints containing traversal sequences such as ../, ..%2f, or encoded variants in query or POST parameters
Web server access logs showing sequential file read requests with varying path parameters targeting wp-content/plugins/myticket-events/ handlers
Unusual outbound responses containing file contents not normally served by the plugin

Detection Strategies

Inspect WordPress and web server logs for requests referencing MyTicket Events handlers combined with path traversal patterns
Deploy Web Application Firewall (WAF) rules that flag directory traversal payloads in query strings and POST bodies
Correlate anomalous file read responses against baseline plugin traffic patterns

Monitoring Recommendations

Enable verbose HTTP request logging on WordPress hosts running the plugin
Alert on repeated 200-OK responses to plugin endpoints with unusual Content-Length values that suggest file exfiltration
Track plugin version inventory across WordPress installations to identify hosts still on 1.2.4 or earlier

How to Mitigate CVE-2025-27299

Immediate Actions Required

Identify all WordPress sites running the MyTicket Events plugin and confirm the installed version
Update MyTicket Events to a version above 1.2.4 once a patched release is available from the vendor
Restrict access to the plugin's file-serving endpoints through WAF rules or .htaccess restrictions until a patch is applied
Review web server logs for prior exploitation attempts and rotate any credentials or secrets that may have been exposed

Patch Information

The Patchstack advisory tracks the fixed release status for MyTicket Events. Administrators should consult the Patchstack advisory and the WordPress plugin repository for the current fixed version and upgrade guidance.

Workarounds

Deactivate the MyTicket Events plugin until an updated release is installed
Add WAF signatures blocking ../, ..%2f, ..%5c, and double-encoded traversal patterns on requests to plugin endpoints
Enforce least-privilege file system permissions so the web server process cannot read sensitive files outside wp-content

bash

# Example ModSecurity rule blocking traversal in plugin requests
SecRule REQUEST_URI "@contains /wp-content/plugins/myticket-events/" \
  "chain,id:1002701,phase:2,deny,status:403,log,msg:'CVE-2025-27299 traversal attempt'"
  SecRule ARGS "@rx (\.\./|\.\.%2f|\.\.%5c)" "t:lowercase,t:urlDecodeUni"