Various resources in Atlassian Fisheye and Crucible before version 4.4.3 (the fixed version for 4.4.x) and 4.5.0 allow remote attackers with administrative privileges to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability through the base path setting of a configured file system repository.

Atlassian Fisheye and Crucible versions less than 4.4.3 and version 4.5.0 are vulnerable to argument injection through filenames in Mercurial repositories, allowing attackers to execute arbitrary code on a system running the impacted software.