CVE-2024-53735

Webclip · Webclip Multiple Products, including Corourke iPhone Webclip Manager

A high-severity vulnerability has been identified in multiple Webclip products, specifically the Corourke iPhone Webclip Manager.

Executive summary

A high-severity vulnerability has been identified in multiple Webclip products, specifically the Corourke iPhone Webclip Manager. This flaw, known as a Stored Cross-Site Scripting (XSS) vulnerability, allows an attacker to inject malicious code that gets saved by the application. This code can later execute in the web browsers of unsuspecting users, potentially leading to account compromise, data theft, and session hijacking.

Vulnerability

This is a Stored Cross-Site Scripting (XSS) vulnerability. The application fails to properly sanitize user-supplied input before storing it and rendering it on web pages. An attacker can exploit this by submitting a crafted payload containing malicious JavaScript to an input field within the application. This payload is then stored in the application's database and is served to other users who view the compromised page, causing the malicious script to execute in their browser context. This could allow an attacker to steal session cookies, capture credentials, perform actions on behalf of the user, or redirect them to a malicious website.

Business impact

This vulnerability is rated as High severity with a CVSS score of 7.1. Successful exploitation could lead to significant business consequences, including the compromise of sensitive user and corporate data, unauthorized access to user accounts, and potential session hijacking of privileged administrator accounts. This could result in reputational damage, loss of customer trust, and could serve as an entry point for further attacks on the organization's network. The risk is elevated for any organization using the affected software to manage user data or internal workflows.

Remediation

Immediate Action: Apply vendor security updates immediately across all affected systems. After patching, it is crucial to monitor for any signs of exploitation that may have occurred prior to remediation by thoroughly reviewing access and application logs.

Proactive Monitoring: Security teams should actively monitor application logs for suspicious input containing HTML or script tags (e.g., <script>, onerror, <img>). Web Application Firewall (WAF) logs should be reviewed for XSS attack signatures. Monitor for unusual user account activity, such as unexpected password or email changes, which could indicate a compromised session.

Compensating Controls: If immediate patching is not feasible, implement a Web Application Firewall (WAF) with strict rules designed to detect and block XSS attack patterns. Enforce stronger content security policies (CSP) to restrict the execution of inline scripts. Limit access to the administrative interfaces of the affected products to trusted IP addresses and personnel.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Given the High severity rating (CVSS 7.1) and the potential for account compromise and data theft, immediate action is strongly recommended. Organizations using the affected Webclip products must prioritize the deployment of the vendor-supplied security patches to all vulnerable systems. Although this CVE is not currently on the CISA KEV list, the risk of targeted attacks is significant. In parallel with patching, organizations should implement the proactive monitoring and compensating controls outlined above to strengthen their security posture and detect any potential exploitation attempts.