An XSS vulnerability was observed due to the execution of malicious JavaScript code from an externally shared file via non-sanitized parameter

An XSS vulnerability was observed due to the execution of malicious JavaScript code from an externally shared file via non-sanitized parameter

Severity

5

CVSS

(AV:N/AC:L/Au:S/C:P/I:P/A:N)

Published

08/12/2024

Created

01/16/2025

Added

01/10/2025

Modified

01/20/2025

Description

An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0. The vulnerability occurs due to inadequate input validation of the res parameter, allowing an authenticated attacker to inject and execute arbitrary JavaScript code within the context of another user's browser session. By uploading a malicious JavaScript file, accessible externally, and crafting a URL containing its location in the res parameter, the attacker can exploit this vulnerability. Subsequently, when another user visits the crafted URL, the malicious JavaScript code is executed.

Solution(s)

• zimbra-collaboration-upgrade-latest

References

• https://attackerkb.com/topics/cve-2024-33536
• CVE - 2024-33536
• https://wiki.zimbra.com/wiki/Zimbra_Releases/10.0.8#Security_Fixes
• https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P40#Security_Fixes