CVE-2021-40651

Name: CVE-2021-40651
Creator: NVD / NIST
Published: 2021-09-29T12:15:07.317+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 18.41%

Last modified Jun 17, 2026

CVE-2021-40651 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. OS4Ed OpenSIS Community 8.0 is vulnerable to a local file inclusion vulnerability in Modules.php (modname parameter), which can disclose arbitrary file from the server's filesystem as long as the application has access to the file.. EPSS estimates a 18.41% chance of exploitation in the next 30 days.

Description

OS4Ed OpenSIS Community 8.0 is vulnerable to a local file inclusion vulnerability in Modules.php (modname parameter), which can disclose arbitrary file from the server's filesystem as long as the application has access to the file.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

18.41%

96.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Os4ed	Opensis	8.0

References

https://github.com/MiSERYYYYY/Vulnerability-Reports-and-Disclosures/blob/main/OpenSIS-Community-8.0.mdExploit, Third Party Advisory
https://www.exploit-db.com/exploits/50259Exploit, Third Party Advisory, VDB Entry
https://youtu.be/wFwlbXANRCoExploit, Third Party Advisory
https://github.com/MiSERYYYYY/Vulnerability-Reports-and-Disclosures/blob/main/OpenSIS-Community-8.0.mdExploit, Third Party Advisory
https://www.exploit-db.com/exploits/50259Exploit, Third Party Advisory, VDB Entry
https://youtu.be/wFwlbXANRCoExploit, Third Party Advisory

Timeline

Published: Sep 29, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-40651?

How severe is CVE-2021-40651?

CVE-2021-40651 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 18.41% probability of exploitation in the next 30 days.

How do I fix CVE-2021-40651?

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-2021-40651?

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

Scan your code now

Source: NVD / NIST