CVE-2020-10560: Opensource-Socialnetwork Open Source Social Network

Medium severity, CVSS 5.9. EPSS: 3.8% chance of exploitation in the next 30 days.

An issue was discovered in Open Source Social Network (OSSN) through 5.3. A user-controlled file path with a weak cryptographic rand() can be used to read any file with the permissions of the webserver. This can lead to further compromise. The attacker must conduct a brute-force attack against the SiteKey to insert into a crafted URL for components/OssnComments/ossn_com.php and/or libraries/ossn.lib.upgrade.php.

Affected products

• Opensource-Socialnetwork Open Source Social Network: up to and including 5.3

Published 2020-03-30. Last modified 2026-06-17.