CVE-2025-22593: Laika Pedigree Tree XSS Vulnerability

CVE-2025-22593 Overview

CVE-2025-22593 is a stored Cross-Site Scripting (XSS) vulnerability in the burria Laika Pedigree Tree WordPress plugin (laika-pedigree-tree). The flaw affects all versions up to and including 1.4 and is chained with a Cross-Site Request Forgery (CSRF) weakness, allowing attackers to inject persistent JavaScript by tricking authenticated users into submitting forged requests.

The plugin fails to properly neutralize user-supplied input during web page generation [CWE-79]. Once injected, the malicious script executes in the browser of any visitor rendering the affected page, enabling session theft, redirection, and administrative account takeover in WordPress environments.

Critical Impact

An unauthenticated attacker can achieve persistent JavaScript execution in the WordPress admin context by combining CSRF with stored XSS, leading to potential site compromise.

Affected Products

• burria Laika Pedigree Tree plugin for WordPress
• Versions from n/a through <= 1.4
• WordPress sites using the laika-pedigree-tree plugin

Discovery Timeline

• 2025-01-07 - CVE-2025-22593 published to NVD
• 2026-04-23 - Last updated in NVD database

Technical Details for CVE-2025-22593

Vulnerability Analysis

The vulnerability resides in the Laika Pedigree Tree plugin's input handling routines. The plugin accepts user-supplied data and renders it back into WordPress pages without applying proper sanitization or output encoding. Because the payload is stored in the database, every subsequent visitor to the affected page triggers script execution.

The issue is compounded by missing CSRF protections. Plugin endpoints that accept input do not validate WordPress nonces, allowing an attacker to forge state-changing requests through a malicious page visited by an authenticated administrator.

Root Cause

The root cause is improper neutralization of input during web page generation, classified under [CWE-79]. The plugin neither escapes HTML special characters on output nor validates a CSRF token on form submissions. This combination converts a typical authenticated XSS into an attack vector reachable without direct authentication, provided social engineering succeeds against a privileged user.

Attack Vector

The attack requires user interaction. An attacker hosts a crafted page containing a forged form targeting the vulnerable plugin endpoint. When an authenticated WordPress administrator visits the page, the browser submits the request with valid session cookies, persisting the attacker's JavaScript payload into plugin-managed content. The stored payload then executes in the security context of every user who later loads the affected page, including administrators. Refer to the Patchstack WordPress Vulnerability Report for additional technical context.

Detection Methods for CVE-2025-22593

Indicators of Compromise

• Unexpected <script>, onerror, or onload attributes stored in plugin-managed database tables or post content
• New or modified WordPress administrator accounts following visits to untrusted external sites
• Outbound browser requests from admin sessions to unfamiliar domains shortly after pedigree pages render

Detection Strategies

• Audit wp_posts and plugin-specific tables for HTML or JavaScript payloads in fields managed by laika-pedigree-tree
• Inspect web server logs for POST requests to plugin endpoints lacking a valid _wpnonce parameter
• Use a web application firewall (WAF) to flag inbound requests containing scripting payloads aimed at the plugin

Monitoring Recommendations

• Enable WordPress audit logging for plugin option and content changes
• Monitor administrator browser sessions for anomalous JavaScript execution and cookie exfiltration attempts
• Track installed plugin versions across managed WordPress sites and alert on laika-pedigree-tree versions <= 1.4

How to Mitigate CVE-2025-22593

Immediate Actions Required

• Identify all WordPress sites running the Laika Pedigree Tree plugin and confirm installed versions
• Disable or uninstall the plugin if a fixed version is not yet available from the vendor
• Review existing pedigree content for previously injected scripts and remove malicious entries

Patch Information

No fixed version is identified in the available advisory data. Administrators should consult the Patchstack WordPress Vulnerability Report and the WordPress plugin repository for updates beyond version 1.4.

Workarounds

• Deactivate the laika-pedigree-tree plugin until a vendor patch is released
• Deploy a WAF rule to block requests containing script tags or event handlers targeting plugin endpoints
• Restrict WordPress administrator sessions to dedicated browsers and require re-authentication for sensitive actions
• Enforce Content Security Policy (CSP) headers that disallow inline script execution on WordPress admin pages

# Disable the vulnerable plugin via WP-CLI until a patched release is available
wp plugin deactivate laika-pedigree-tree
wp plugin delete laika-pedigree-tree