CVE-2024-54265: Barcode Scanner Plugin XSS Vulnerability

CVE-2024-54265 Overview

CVE-2024-54265 is a reflected cross-site scripting (XSS) vulnerability in the Barcode Scanner with Inventory & Order Manager WordPress plugin, developed by Dmitry V. (CEO of UKR Solution). The plugin, distributed as barcode-scanner-lite-pos-to-manage-products-inventory-and-orders, fails to properly neutralize user-supplied input during web page generation. All versions up to and including 1.6.6 are affected. The flaw is tracked under CWE-79 and requires user interaction to trigger, typically through a crafted URL delivered to an authenticated administrator or store operator.

Critical Impact
An unauthenticated attacker can execute arbitrary JavaScript in a victim's browser session, potentially hijacking WordPress administrator sessions and pivoting to full site compromise.

Affected Products

Barcode Scanner with Inventory & Order Manager (barcode-scanner-lite-pos-to-manage-products-inventory-and-orders) — versions n/a through 1.6.6
WordPress installations with the vulnerable plugin activated
E-commerce and point-of-sale deployments relying on this plugin for inventory management

Discovery Timeline

2024-12-13 - CVE-2024-54265 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-54265

Vulnerability Analysis

The vulnerability is a reflected XSS flaw. The plugin accepts input from HTTP request parameters and reflects that input back into the rendered HTML response without adequate sanitization or output encoding. An attacker crafts a URL containing malicious JavaScript in a vulnerable parameter and lures a WordPress user, typically an administrator managing inventory or orders, into clicking it. The browser then executes the injected script under the origin of the WordPress site.

Because the CVSS scope is marked as changed, script execution affects resources beyond the vulnerable component. In a WordPress context, this means an attacker's payload runs with the privileges of the authenticated session, enabling actions such as creating rogue administrator accounts, modifying plugin settings, or exfiltrating session cookies.

The EPSS probability for this CVE is approximately 0.41%, placing it in the 32nd percentile of exploited vulnerabilities. No public exploit code or CISA KEV listing exists at the time of publication.

Root Cause

The root cause is improper neutralization of input during web page generation. The plugin trusts request-supplied data and inserts it into HTML output without applying WordPress escaping functions such as esc_html(), esc_attr(), or esc_url(). This coding pattern violates WordPress plugin development guidance on output escaping.

Attack Vector

Exploitation requires network access and user interaction but no authentication or prior privileges on the target site. The attacker delivers a crafted link through phishing email, a malicious webpage, or social engineering. When the victim, logged into WordPress, follows the link, the reflected payload executes in their browser. The attack requires no local access to the WordPress server.

The vulnerability mechanism is described in the Patchstack Vulnerability Report. No verified proof-of-concept code is publicly available.

Detection Methods for CVE-2024-54265

Indicators of Compromise

HTTP request logs containing URL parameters with encoded or raw <script>, javascript:, onerror=, or onload= payloads targeting plugin endpoints
Unexpected outbound requests from administrator browsers to attacker-controlled domains following link clicks
New WordPress administrator accounts, altered plugin settings, or unauthorized changes to inventory data without a corresponding audit trail
Referer headers pointing to unfamiliar external sites when accessing plugin admin pages

Detection Strategies

Deploy a web application firewall (WAF) with rules that flag common XSS patterns in query strings and POST bodies destined for /wp-admin/ and plugin-specific routes
Enable WordPress activity logging to record administrative actions such as user creation, role changes, and plugin configuration edits
Perform static analysis of plugin source to identify parameters echoed to the response without esc_* wrappers

Monitoring Recommendations

Monitor WordPress access logs for requests to plugin endpoints containing HTML metacharacters or JavaScript keywords
Alert on administrator session activity originating from unexpected geolocations or user agents
Track outbound HTTP requests from browsers of privileged users for anomalous destinations that may indicate cookie exfiltration

How to Mitigate CVE-2024-54265

Immediate Actions Required

Deactivate the Barcode Scanner with Inventory & Order Manager plugin until a patched release is confirmed installed
Force logout of all WordPress administrator sessions and rotate authentication cookies and passwords
Review WordPress user list for unauthorized administrator accounts and remove any that cannot be attributed
Audit recent plugin configuration changes and inventory modifications for signs of tampering

Patch Information

At the time of NVD publication, versions up to and including 1.6.6 are affected. Administrators should upgrade to the latest release from the WordPress plugin repository once a fixed version is published. Refer to the Patchstack Vulnerability Report for the current fix status.

Workarounds

Restrict access to the WordPress administration interface using IP allowlisting at the web server or WAF layer
Deploy a Content Security Policy (CSP) header that disallows inline script execution to blunt the impact of reflected payloads
Train administrators to avoid clicking untrusted links while authenticated to the WordPress console, and use a dedicated browser profile for admin tasks

bash

# Example nginx snippet to enforce a restrictive Content Security Policy
add_header Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'; frame-ancestors 'self';" always;