CVE-2023-54364: Joomla HikaShop XSS Vulnerability

CVE-2023-54364 Overview

Joomla HikaShop 4.7.4 contains a reflected cross-site scripting (XSS) vulnerability that allows unauthenticated attackers to inject malicious scripts by manipulating GET parameters in the product filter endpoint. Attackers can craft malicious URLs containing XSS payloads in the from_option, from_ctrl, from_task, or from_itemid parameters to steal session tokens or login credentials when victims visit the link.

Critical Impact

Attackers can steal user session tokens, credentials, and perform actions on behalf of authenticated users by tricking them into clicking malicious links.

Affected Products

• Joomla HikaShop 4.7.4
• Joomla installations running vulnerable HikaShop extensions
• E-commerce sites utilizing HikaShop product filter functionality

Discovery Timeline

• 2026-04-09 - CVE CVE-2023-54364 published to NVD
• 2026-04-09 - Last updated in NVD database

Technical Details for CVE-2023-54364

Vulnerability Analysis

This reflected XSS vulnerability exists in the HikaShop product filter endpoint, which fails to properly sanitize user-supplied input in multiple GET parameters. When a victim clicks a crafted malicious URL, the attacker-controlled script executes in the context of the victim's browser session on the vulnerable Joomla site.

The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation), which represents a failure to encode or sanitize output that includes user-controllable input. In this case, the product filter functionality reflects URL parameter values directly into the HTML response without proper encoding.

Root Cause

The root cause of this vulnerability is insufficient input validation and output encoding in the HikaShop product filter component. The from_option, from_ctrl, from_task, and from_itemid GET parameters are reflected in the page output without being properly sanitized or HTML-encoded. This allows attackers to inject JavaScript code that executes when the page renders in the victim's browser.

Attack Vector

The attack leverages the network-accessible product filter endpoint and requires user interaction—specifically, the victim must click a malicious link crafted by the attacker. The attacker constructs a URL targeting the HikaShop product filter page with XSS payloads embedded in one or more of the vulnerable parameters.

When a logged-in administrator or customer clicks the malicious link, the injected JavaScript executes with their browser session privileges. This can lead to session hijacking, credential theft, defacement, or further attacks against the Joomla installation. For more technical details, see the Exploit-DB #51629 entry and the VulnCheck Joomla XSS Advisory.

Detection Methods for CVE-2023-54364

Indicators of Compromise

• Unusual URL patterns in web server logs containing JavaScript code in from_option, from_ctrl, from_task, or from_itemid parameters
• Requests to HikaShop product filter endpoints with encoded script tags or event handlers
• User reports of suspicious redirects or unexpected behavior when accessing product pages
• Session token exfiltration attempts in network traffic logs

Detection Strategies

• Implement web application firewall (WAF) rules to detect and block XSS payloads in URL parameters
• Monitor web server access logs for requests containing suspicious patterns such as <script>, javascript:, or event handlers like onerror=
• Deploy browser-based XSS detection through Content Security Policy (CSP) violation reporting
• Use security scanning tools to identify reflected XSS vulnerabilities in HikaShop installations

Monitoring Recommendations

• Enable detailed logging for the HikaShop component and monitor for anomalous parameter values
• Configure intrusion detection systems to alert on XSS attack signatures targeting Joomla sites
• Implement real-time monitoring of authentication events for signs of session hijacking
• Review CSP violation reports regularly for attempted XSS attacks

How to Mitigate CVE-2023-54364

Immediate Actions Required

• Update HikaShop to the latest patched version as soon as one becomes available from the vendor
• Implement a Web Application Firewall (WAF) to filter malicious XSS payloads in URL parameters
• Add Content Security Policy headers to restrict script execution sources
• Review Joomla access logs for evidence of exploitation attempts

Patch Information

Organizations should monitor the HikaShop Official Site for security updates addressing this vulnerability. Until a patch is available, implement the workarounds below to reduce exposure. Additional technical details are available in the VulnCheck Joomla XSS Advisory.

Workarounds

• Deploy a WAF rule to sanitize or block requests containing script tags or JavaScript event handlers in the from_option, from_ctrl, from_task, and from_itemid parameters
• Implement strict Content Security Policy headers to prevent inline script execution
• Consider temporarily disabling the product filter functionality if not business-critical
• Educate users about phishing attacks and the risks of clicking untrusted links

# Example Apache ModSecurity WAF rule to block XSS in HikaShop parameters
SecRule ARGS:from_option|ARGS:from_ctrl|ARGS:from_task|ARGS:from_itemid "@rx (?i)(<script|javascript:|on\w+\s*=)" \
    "id:1001,phase:2,deny,status:403,msg:'Potential XSS in HikaShop parameter'"