{"uuid": "c622bc49-601f-4d86-b751-1c7eb6aa00c5", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-108164", "type": "seen", "source": "https://infosec.exchange/users/cve/statuses/117416974539382692", "content": "CVE-2026-108164 Open Source Social Network (OSSN) through 10.1 IDOR via Message Attachment Route Open Source Social Network (OSSN) through 10.1 contains an insecure direct object reference vulnerability in components/OssnMessages/ossn_com.php that allows authenticated users to read other users' private message attachments. Attackers can request the /messages/attachment/{guid} route with sequential or guessed file GUIDs to retrieve attachments from private conversations without sender or recipient verification.\nhttps://www.cve.org/CVERecord?id=CVE-2026-108164https://github.com/opensource-socialnetwork/opensource-socialnetwork/issues/2641https://github.com/opensource-socialnetwork/opensource-socialnetwork/commit/2e9733d8eaafccdaef3d9b498348c8332e51f48bhttps://hackmd.io/@leediay/ossn-idor-message-attachmenthttps://github.com/opensource-socialnetwork/opensource-socialnetwork/blob/48b53f5b95488187715b2d5b5ae46a993267f83d/components/OssnMessages/ossn_com.php#L149-L156https://github.com/opensource-socialnetwork/opensource-socialnetworkhttps://www.vulncheck.com/advisories/open-source-social-network-ossn-through-10.1-idor-via-message-attachment-route#opensource-socialnetwork#CVE_2026_108164#bot", "creation_timestamp": "2026-10-10T14:00:47.426769Z"}