CVE-2020-10560
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...
- Published
- Mar 30, 2020
- Updated
- Aug 4, 2024
- Assigning CNA
- mitre
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NLow · next 30 days
- Percentile
- 89.6%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
2- CVE-2020-10560-Key-RecoveryExploit
Proof-of-concept exploit that recovers the site_key for OSSN 5.3 and above, exploiting CVE-2020-10560 arbitrary file read vulnerability.
- CVE-2020-10560Exploit
Docker-based lab environment and proof-of-concept scripts for exploiting CVE-2020-10560, an arbitrary file read vulnerability in OSSN. Includes PHP and Python exploit code.
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