CVE-2021-43657

Name: CVE-2021-43657
Creator: NVD / NIST
Published: 2022-12-22T02:15:08.08+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.72%

Last modified Jun 17, 2026

CVE-2021-43657 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. A Stored Cross-site scripting (XSS) vulnerability via MAster.php in Sourcecodetester Simple Client Management System (SCMS) 1.0 allows remote attackers to inject arbitrary web script or HTML via the vulnerable input fields.. EPSS estimates a 0.72% chance of exploitation in the next 30 days.

Description

A Stored Cross-site scripting (XSS) vulnerability via MAster.php in Sourcecodetester Simple Client Management System (SCMS) 1.0 allows remote attackers to inject arbitrary web script or HTML via the vulnerable input fields.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.72%

49.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Simple Client Management System Project	Simple Client Management System	1.0

References

https://github.com/c0n5n3d/CVE-2021-43657/blob/main/Info.txtThird Party Advisory
https://github.com/c0n5n3d/CVE-2021-43657/blob/main/Info.txtThird Party Advisory

Timeline

Published: Dec 22, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-43657?

How severe is CVE-2021-43657?

CVE-2021-43657 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.72% probability of exploitation in the next 30 days.

How do I fix CVE-2021-43657?

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-2021-43657?

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

Scan your code now

Source: NVD / NIST