CVE-2024-57004: 
Linux Debian vulnerability analysis and mitigation

A critical Cross-Site Scripting (XSS) vulnerability has been identified in Roundcube Webmail version 1.6.9. The vulnerability, tracked as CVE-2024-57004, allows remote authenticated users to upload malicious files as email attachments, which can trigger XSS attacks when visiting the SENT folder (NVD, Cybersecurity News).

The vulnerability stems from insufficient sanitization of user input during the handling of email attachments. The flaw specifically permits attackers to inject arbitrary JavaScript or malicious scripts into attachments, which are then executed when the victim views the compromised email in their SENT folder, triggering a Stored XSS attack. The vulnerability has been assigned a CVSS v3.1 Base Score of 6.1 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N (NVD).

The exploitation of this vulnerability can lead to several serious consequences. Attackers can potentially steal sensitive information such as login credentials, email content, or personal data stored in the victim's browser session. The vulnerability may enable attackers to hijack email accounts or gain unauthorized access to email servers. Additionally, it can be used as a vector for spreading malware to other systems connected to the Roundcube deployment (GBHackers).

The Roundcube development team has addressed this vulnerability by releasing version 1.6.10. Organizations and users are strongly advised to upgrade their Roundcube installations immediately to this latest version. Additional security measures include implementing web application firewalls (WAFs) to detect and block malicious payloads, limiting user access permissions, and regularly monitoring webmail activity logs for potential signs of exploitation (Cybersecurity News).