CVE-2026-108950

medium

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://www.vulncheck.com/advisories/open-source-social-network-ossn-through-10.1-missing-authorization-via-album-photo-routes

https://hackmd.io/@leediay/multiple-ossn-v10_vulnerable

https://github.com/opensource-socialnetwork/opensource-socialnetwork/issues/2641

https://github.com/opensource-socialnetwork/opensource-socialnetwork/commit/cb7c24e70f8c4470ee485caac4889885d2e120b3

https://github.com/opensource-socialnetwork/opensource-socialnetwork/blob/48b53f5b95488187715b2d5b5ae46a993267f83d/components/OssnPhotos/ossn_com.php#L481-L521

https://github.com/opensource-socialnetwork/opensource-socialnetwork

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-97357

Details

Source: Mitre, NVD

Published: 2026-10-12

Updated: 2026-10-18

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Severity: Medium

CVSS v4

Base Score: 6.9

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00326