CVE-2024-54235: Shiptimize for WooCommerce XSS Flaw

CVE-2024-54235 Overview

CVE-2024-54235 is a reflected cross-site scripting (XSS) vulnerability affecting the Shiptimize for WooCommerce WordPress plugin. The flaw stems from improper neutralization of user-supplied input during web page generation [CWE-79]. Affected versions include all releases from n/a through 3.1.86. Attackers can craft malicious URLs that execute arbitrary JavaScript in a victim's browser when clicked. Successful exploitation requires user interaction and can compromise session data, redirect users to malicious sites, or perform actions on behalf of authenticated administrators.

Critical Impact

Attackers can execute arbitrary JavaScript in victims' browsers, potentially hijacking WordPress administrator sessions and compromising e-commerce store integrity.

Affected Products

• Shiptimize for WooCommerce plugin (shiptimize-for-woocommerce)
• All versions from initial release through 3.1.86
• WordPress installations running WooCommerce with the affected plugin enabled

Discovery Timeline

• 2024-12-13 - CVE-2024-54235 published to NVD
• 2026-04-23 - Last updated in NVD database

Technical Details for CVE-2024-54235

Vulnerability Analysis

The vulnerability exists in the Shiptimize for WooCommerce plugin's handling of HTTP request parameters. The plugin reflects user-supplied input back into rendered pages without proper sanitization or output encoding. This allows attackers to inject HTML and JavaScript payloads that execute within the victim's browser context.

Reflected XSS vulnerabilities require the victim to interact with a malicious link, typically delivered through phishing emails, social media, or compromised websites. When the victim clicks the crafted link, the malicious payload travels to the vulnerable application and is reflected in the response. The browser then executes the payload under the security context of the vulnerable site.

The scope change indicated in the CVSS vector means the executed script can affect resources beyond the vulnerable component, including the broader WordPress administrative interface.

Root Cause

The root cause is missing input validation and output encoding in plugin code paths that process request parameters. The plugin fails to apply WordPress sanitization functions such as esc_html(), esc_attr(), or sanitize_text_field() before echoing user-controlled data into HTML responses.

Attack Vector

The attack vector is network-based with low complexity and no authentication required. An attacker constructs a URL containing a malicious JavaScript payload targeting a vulnerable plugin endpoint. The attacker then delivers this URL to a victim, typically a WordPress administrator or store operator. Upon clicking, the victim's browser executes the injected script, potentially exposing authentication cookies, session tokens, or enabling administrative actions through the victim's session.

For technical details, refer to the Patchstack Vulnerability Report.

Detection Methods for CVE-2024-54235

Indicators of Compromise

• HTTP requests to Shiptimize plugin endpoints containing encoded <script> tags, javascript: URIs, or event handlers such as onerror= and onload=
• Unusual outbound requests from administrator browsers to attacker-controlled domains following clicks on suspicious links
• WordPress audit log entries showing unexpected administrative actions or session anomalies

Detection Strategies

• Inspect web server access logs for query strings containing HTML special characters, URL-encoded script payloads, or unusual parameter values targeting shiptimize-for-woocommerce paths
• Deploy Web Application Firewall (WAF) rules to flag reflected payloads matching common XSS signatures
• Monitor Content Security Policy (CSP) violation reports for inline script execution attempts on WordPress admin pages

Monitoring Recommendations

• Enable verbose logging on WordPress and reverse proxies to capture full request URIs and referrer headers
• Correlate administrator login events with subsequent unusual API calls or configuration changes
• Alert on phishing emails referencing WordPress admin URLs with encoded parameters targeting the plugin

How to Mitigate CVE-2024-54235

Immediate Actions Required

• Update the Shiptimize for WooCommerce plugin to a version above 3.1.86 once a patched release is available from the vendor
• Audit WordPress administrator accounts and rotate session tokens and passwords if compromise is suspected
• Train administrators to avoid clicking unverified links pointing to the WordPress admin interface

Patch Information

Review the Patchstack Vulnerability Report for the latest remediation guidance and patched version availability. Verify the installed plugin version via the WordPress plugins dashboard and apply updates promptly.

Workarounds

• Temporarily disable the Shiptimize for WooCommerce plugin until a patched version is installed
• Deploy a WAF with rules blocking reflected XSS patterns targeting plugin endpoints
• Implement a strict Content Security Policy that disallows inline scripts and restricts script sources to trusted origins
• Restrict WordPress admin access by IP allowlist or VPN to reduce phishing exposure

# Example CSP header to mitigate reflected XSS impact
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'"