CVE-2026-108950

Description

Open Source Social Network (OSSN) through 10.1 contains a missing authorization vulnerability in ossn_album_page_handler that allows unauthenticated attackers to download files via album/getphoto and album/getcover. Attackers can enumerate sequential file GUIDs to retrieve friends-only album photos and other stored files without any access check.

References

• https://github.com/opensource-socialnetwork/opensource-socialnetwork
• https://github.com/opensource-socialnetwork/opensource-socialnetwork/blob/48b53f5b95488187715b2d5b5ae46a993267f83d/components/OssnPhotos/ossn_com.php#L481-L521
• https://github.com/opensource-socialnetwork/opensource-socialnetwork/commit/cb7c24e70f8c4470ee485caac4889885d2e120b3
• https://github.com/opensource-socialnetwork/opensource-socialnetwork/issues/2641
• https://hackmd.io/@leediay/multiple-ossn-v10_vulnerable