CVE-2025-30563: Tidekey Reflected XSS Vulnerability

CVE-2025-30563 Overview

CVE-2025-30563 is a reflected Cross-Site Scripting (XSS) vulnerability in the makong Tidekey WordPress plugin. The flaw stems from improper neutralization of user-supplied input during web page generation [CWE-79]. It affects all Tidekey plugin versions up to and including 1.1.

An unauthenticated attacker can craft a malicious URL containing JavaScript payloads. When a victim clicks the link, the payload executes in the victim's browser within the context of the vulnerable site. The attack requires user interaction but no privileges.

Critical Impact

Successful exploitation allows attackers to execute arbitrary JavaScript in a victim's browser, enabling session theft, credential harvesting, and unauthorized actions performed under the victim's identity.

Affected Products

• makong Tidekey WordPress plugin versions through 1.1
• WordPress sites with the Tidekey plugin installed and active
• No patched version is identified in the available advisory data

Discovery Timeline

• 2025-04-01 - CVE-2025-30563 published to NVD
• 2026-04-23 - Last updated in NVD database

Technical Details for CVE-2025-30563

Vulnerability Analysis

The vulnerability is a reflected XSS issue in the Tidekey plugin for WordPress. Reflected XSS occurs when an application echoes attacker-supplied input back into an HTTP response without proper output encoding or input sanitization.

In this case, the plugin processes a request parameter and renders its value into the response page. Because the value is not encoded for the HTML context, an attacker can inject script tags or event handlers that the browser executes. The scope is marked as changed, meaning the executed script can affect resources beyond the vulnerable component, such as authenticated session cookies for the WordPress origin.

Exploitation typically delivers the malicious URL via phishing, malicious advertising, or third-party site embedding. The required user interaction is a single click on the crafted link.

Root Cause

The plugin fails to apply context-appropriate output encoding when reflecting request parameters into generated HTML. Standard WordPress sanitization functions such as esc_html(), esc_attr(), or wp_kses() are not applied to the affected sink, allowing raw markup to reach the rendered page.

Attack Vector

The attack vector is network-based and remote. An attacker constructs a URL pointing to a vulnerable Tidekey endpoint with a JavaScript payload in a reflected parameter. The victim must be tricked into visiting the URL. No authentication is required on the attacker side. See the Patchstack Tidekey Plugin XSS Vulnerability entry for additional technical context.

Detection Methods for CVE-2025-30563

Indicators of Compromise

• HTTP requests to Tidekey plugin endpoints containing URL-encoded <script>, onerror=, onload=, or javascript: strings in query parameters
• Unusual Referer headers from external phishing domains preceding suspicious user activity
• Outbound requests from authenticated administrator browsers to attacker-controlled domains following access to Tidekey URLs

Detection Strategies

• Inspect web server access logs for query strings containing common XSS payload patterns targeting Tidekey routes
• Deploy a web application firewall (WAF) rule set that flags reflected payload signatures in requests to /wp-content/plugins/tidekey/ paths
• Correlate browser-side Content Security Policy (CSP) violation reports with server logs to identify in-the-wild exploitation attempts

Monitoring Recommendations

• Monitor administrator account activity for anomalous session usage, password changes, or new user creation following clicks on external links
• Audit installed WordPress plugins and version inventories on a recurring schedule to surface vulnerable instances of Tidekey
• Enable verbose logging at the reverse proxy or WAF layer to retain full request URIs for forensic review

How to Mitigate CVE-2025-30563

Immediate Actions Required

• Deactivate and remove the Tidekey plugin until a vendor patch beyond version 1.1 is confirmed available
• Apply WAF rules that block reflected XSS payloads targeting the plugin's request parameters
• Force-reset session cookies and rotate administrator credentials if exploitation is suspected

Patch Information

The available advisory data does not identify a fixed version. Administrators should monitor the Patchstack advisory and the WordPress plugin repository for an updated release. Until a patch is published, removal of the plugin is the most reliable mitigation.

Workarounds

• Restrict access to WordPress administrative areas using IP allowlisting at the network or web server layer
• Implement a strict Content Security Policy that disallows inline script execution and unauthorized external script sources
• Train administrators to avoid clicking unsolicited links pointing to the WordPress site, particularly those containing encoded parameters

# Example nginx configuration to add a restrictive Content Security Policy
add_header Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'; frame-ancestors 'none';" always;
add_header X-Content-Type-Options "nosniff" always;
add_header X-Frame-Options "DENY" always;