CVE-2024-51419 is a Cross Site Scripting (XSS) vulnerability categorized under CWE-79, affecting Ofweek Online Exhibition version 1.0.0, a platform developed by Shenzhen Interconnection Harbor Network Technology Co., Ltd. The vulnerability allows remote attackers to inject and execute arbitrary scripts in the context of a victim’s browser session. This occurs due to insufficient input sanitization or improper output encoding of user-supplied data within the web application. The CVSS v3.1 score of 6.1 reflects a medium severity, with an attack vector of network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), but requiring user interaction (UI:R). The scope is changed (S:C), meaning the vulnerability affects components beyond the initially vulnerable component, and impacts confidentiality and integrity (C:L/I:L) but not availability (A:N). Successful exploitation can lead to theft of sensitive information such as session cookies, user credentials, or other private data, and potentially allow attackers to perform actions on behalf of the victim. No patches or fixes have been published yet, and no known exploits are currently reported in the wild. The vulnerability highlights the need for robust input validation, context-aware output encoding, and security testing in web applications, especially those handling sensitive user interactions like online exhibition platforms.

The primary impact of CVE-2024-51419 is the compromise of user confidentiality and integrity through the execution of malicious scripts in users’ browsers. This can lead to session hijacking, theft of sensitive information, and unauthorized actions performed on behalf of users. For organizations, this can result in data breaches, loss of user trust, reputational damage, and potential regulatory penalties if personal data is exposed. Since the vulnerability requires user interaction, the risk is somewhat mitigated but remains significant, especially in environments where users are likely to click on links or interact with untrusted content. The lack of availability impact means service disruption is unlikely, but the integrity and confidentiality risks are sufficient to warrant urgent attention. Organizations running Ofweek Online Exhibition or similar platforms should consider the threat serious, particularly if they handle sensitive or proprietary information during online exhibitions or events.

To mitigate CVE-2024-51419, organizations should implement strict input validation on all user-supplied data, ensuring that potentially malicious scripts are sanitized or rejected. Employ context-aware output encoding, such as HTML entity encoding, JavaScript escaping, or URL encoding, depending on where the data is rendered. Use Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of XSS attacks. Regularly audit and test web applications using automated and manual security testing tools focusing on injection flaws. Educate users about the risks of clicking untrusted links and implement multi-factor authentication to reduce the impact of session hijacking. Monitor web traffic for suspicious activity and prepare incident response plans for potential exploitation. Since no official patch is available yet, consider temporary workarounds such as disabling or restricting vulnerable features or modules until a fix is released.