CVE-2021-43505 Cross-site scripting in n/a

Medium 5.4 Published 31 Mar 2022 Updated 4 Aug 2024

Attackers can inject malicious scripts via client and invoice forms in Simple Client Management System, potentially compromising user sessions.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2021-43505?

CVE-2021-43505 is a medium-severity cross-site scripting vulnerability in n/a, published on 31 Mar 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Multiple Cross Site Scripting (XSS) vulnerabilities exist in Ssourcecodester Simple Client Management System v1 via (1) Add new Client and (2) Add new invoice.

Weakness: CWE-79

Which versions are affected by CVE-2021-43505?

It affects 1 product.

Products include Simple Client Management System Project Simple Client Management System.

How do I fix CVE-2021-43505?

No fix has been published for CVE-2021-43505 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2021-43505 being exploited?

There is no known exploitation of CVE-2021-43505 in the wild and no public exploit code.

Sources

Also known as GHSA-m4x4-477c-c7vm.