LibrePhotos before 1.0.0 contains a broken object level authorization vulnerability in the SetPhotosShared endpoint that allows authenticated users to grant themselves access to other users' private photos by bypassing ownership validation. Attackers can manipulate shared_to relations without proper owner checks to read arbitrary private photos belonging to other users.
https://github.com/LibrePhotos/librephotos/releases/tag/1.0.0
https://github.com/LibrePhotos/librephotos/pull/1866
https://github.com/LibrePhotos/librephotos/issues/1860
https://github.com/LibrePhotos/librephotos/commit/325bd1f5fda71c6d56737aa09cfce0cb8106675a
Published: 2026-06-29
Updated: 2026-06-29
Base Score: 5.6
Vector: CVSS2#AV:N/AC:H/Au:S/C:C/I:P/A:N
Severity: Medium
Base Score: 5.9
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
Severity: Medium
Base Score: 6
Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Severity: Medium