CVE-2024-48450 is a vulnerability identified in Huly Platform version 0.6.295 that permits arbitrary file upload. Specifically, an attacker can upload a maliciously crafted HTML file into a chat group within the platform. This file upload flaw allows the attacker to execute arbitrary code, potentially compromising the confidentiality of data accessible through the platform. The vulnerability is classified under CWE-918, which involves improper handling of file uploads leading to server-side code execution or similar impacts. The attack vector is network-based, requiring no privileges but necessitating user interaction, such as a user opening or interacting with the uploaded HTML file in the chat. The CVSS v3.1 base score is 6.5, indicating medium severity, with a high impact on confidentiality but no impact on integrity or availability. The vulnerability is currently published with no known exploits in the wild and no patches available yet. This suggests that while the vulnerability is serious, exploitation may be limited until further tooling or exploits emerge. The lack of patch means organizations must rely on alternative mitigations such as restricting file upload types, monitoring chat content, and user education. The vulnerability could be leveraged to steal sensitive information or perform phishing or social engineering attacks via the malicious HTML content. Given the nature of chat platforms as collaboration tools, this vulnerability could be exploited in targeted attacks against organizations using Huly Platform for internal or external communications.

The primary impact of CVE-2024-48450 is the potential compromise of confidentiality through arbitrary code execution enabled by malicious HTML file uploads. Attackers could use this to steal sensitive information, session tokens, or credentials from users interacting with the malicious content. Since the vulnerability does not affect integrity or availability, it is less likely to cause data tampering or service disruption directly. However, the ability to execute arbitrary code within the context of the platform could facilitate further attacks, including lateral movement or persistent access. Organizations worldwide using Huly Platform for communication are at risk, especially those handling sensitive or proprietary information. The requirement for user interaction limits mass exploitation but does not eliminate targeted spear-phishing or social engineering attacks. The absence of patches increases the window of exposure, and attackers may develop exploits over time. This vulnerability could undermine trust in the platform and lead to data breaches or compliance violations if exploited.

Since no official patch is currently available, organizations should implement the following mitigations: 1) Restrict or disable file uploads in chat groups, especially HTML or script-based files, through platform configuration or administrative controls. 2) Implement content filtering or scanning on uploaded files to detect and block potentially malicious HTML or script content. 3) Educate users to avoid interacting with suspicious or unexpected files in chat groups and report any unusual activity. 4) Monitor chat logs and network traffic for signs of malicious file uploads or unusual behavior indicative of exploitation attempts. 5) Employ web application firewalls (WAFs) or intrusion detection systems (IDS) to detect and block exploitation attempts targeting this vulnerability. 6) Engage with Huly Platform vendors or support channels to obtain updates or patches as soon as they become available. 7) Consider isolating or sandboxing chat platform environments to limit the impact of potential code execution. These steps go beyond generic advice by focusing on file type restrictions, user awareness, and active monitoring tailored to the nature of this vulnerability.