CVE-2026-116136

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.

References

• https://github.com/projectsend/projectsend
• https://github.com/projectsend/projectsend/blob/v2.7.1/app/Modules/Files/Versions/FileVersions.php#L456-L467
• https://github.com/projectsend/projectsend/blob/v2.7.1/app/Modules/Files/Versions/FileVersions.php#L534-L575
• https://github.com/projectsend/projectsend/commit/a6ce4f51cfd05e1c9895f8daed261ef1fdfd194d
• https://www.vulncheck.com/advisories/projectsend-2.0.0-through-2.7.1-incorrect-authorization-via-file-version-linking