Vulnerability in ProjectSend

[ Description ]Official description

ProjectSend 2.0.0 through 2.7.1 contains an incomplete authorization vulnerability in FileVersions::link() that allows staff users to share files without authorization by linking file versions. Attackers can link their file onto an intermediate revision or assign out-of-scope clients, causing moveAssignmentsToRoot() to expose protected original files to unauthorized clients.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/projectsend/projectsend
• github.com/projectsend/projectsend/blob/v2.7.1/app/Modules/Files/Versions/FileVersions.php
• github.com/projectsend/projectsend/blob/v2.7.1/app/Modules/Files/Versions/FileVersions.php
• github.com/projectsend/projectsend/commit/a6ce4f51cfd05e1c9895f8daed261ef1fdfd194d
• www.vulncheck.com/advisories/projectsend-2.0.0-through-2.7.1-incorrect-authorization-vi…