CVE-2021-40910 Cross-site scripting in n/a

Medium 6.1 Published 15 Jun 2022 Updated 4 Aug 2024

An attacker can execute arbitrary scripts in the PHPCMS management interface via reflective XSS, potentially compromising admin accounts.

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

What is CVE-2021-40910?

CVE-2021-40910 is a medium-severity cross-site scripting vulnerability in n/a, published on 15 Jun 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

There is a reflective cross-site scripting (XSS) vulnerability in the PHPCMS V9.6.3 management side.

Weakness: CWE-79

Which versions are affected by CVE-2021-40910?

It affects 1 product.

Products include Phpcms Phpcms.

How do I fix CVE-2021-40910?

No fix has been published for CVE-2021-40910 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-2021-40910 being exploited?

There is no known exploitation of CVE-2021-40910 in the wild and no public exploit code.

Sources

Also known as GHSA-g6p4-fv6m-vf86.