CVE-2021-46013

Name: CVE-2021-46013
Creator: NVD / NIST
Published: 2022-01-18T18:15:08.38+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.47%

Last modified Jun 17, 2026

CVE-2021-46013 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An unrestricted file upload vulnerability exists in Sourcecodester Free school management software 1.0. An attacker can leverage this vulnerability to enable remote code execution on the affected web server. EPSS estimates a 3.47% chance of exploitation in the next 30 days.

Description

An unrestricted file upload vulnerability exists in Sourcecodester Free school management software 1.0. An attacker can leverage this vulnerability to enable remote code execution on the affected web server. Once a php webshell containing "<?php system($_GET["cmd"]); ?>" gets uploaded it is saved into /uploads/exam_question/ directory, and is accessible by all users.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

3.47%

87.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Free School Management Software Project	Free School Management Software	1.0

References

https://www.exploit-db.com/exploits/50587Exploit, Third Party Advisory, VDB Entry
https://www.exploit-db.com/exploits/50587Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Jan 18, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-46013?

How severe is CVE-2021-46013?

CVE-2021-46013 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.47% probability of exploitation in the next 30 days.

How do I fix CVE-2021-46013?

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-2021-46013?

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

Scan your code now

Source: NVD / NIST