CVE-2008-4932: webmail/modules/filesystem/edit.php in U-Mail Webmail server 4.91 allows remote attackers to overwrite arbi...

Security readout for executives and security teams

U-Mail Webmail Server 4.91 has a flaw that lets a remote attacker overwrite files on the server. If the written file is in the web document root, the issue may lead to code execution. The bundle does not identify a vendor patch or active exploitation evidence. Exposure is likely limited to organizations still running U-Mail Webmail Server 4.91, especially if the webmail interface is reachable from untrusted networks. The provided affected-product metadata is incomplete, so asset confirmation is essential. Prioritize remediation for any internet-facing or business-critical U-Mail 4.91 deployment. Although active exploitation is not evidenced here, remote arbitrary file overwrite with possible code execution is a serious compromise path. Mitigation focus: Identify and remove or isolate U-Mail Webmail Server 4.91 instances.; Check vendor or trusted advisory guidance for any available fixed version.; Restrict webmail access to trusted networks until remediation is confirmed..

Prepared

Jun 28, 2026, 18:33 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.