CVE-2020-10560

Name: CVE-2020-10560
Creator: NVD / NIST
Published: 2020-03-30T13:15:12.863+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 3.80%

Last modified Jun 17, 2026

CVE-2020-10560 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. 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. EPSS estimates a 3.80% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

5.9/10

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

EPSS Probability

3.80%

88.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-338

Affected Software

Vendor	Product	Versions
Opensource-Socialnetwork	Open Source Social Network	<= 5.3

References

https://github.com/LucidUnicorn/CVE-2020-10560-Key-RecoveryThird Party Advisory
https://techanarchy.net/blog/cve-2020-10560-ossn-arbitrary-file-readExploit, Third Party Advisory
https://github.com/LucidUnicorn/CVE-2020-10560-Key-RecoveryThird Party Advisory
https://techanarchy.net/blog/cve-2020-10560-ossn-arbitrary-file-readExploit, Third Party Advisory

Timeline

Published: Mar 30, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-10560?

How severe is CVE-2020-10560?

CVE-2020-10560 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 3.80% probability of exploitation in the next 30 days.

How do I fix CVE-2020-10560?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-10560?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST