CVE-2021-30211 Cross-site scripting in n/a

Medium 5.4 Published 12 May 2021 Updated 3 Aug 2024

An attacker can inject arbitrary web script via the surname parameter in Knowage Suite, potentially leading to session hijacking or malicious actions.

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-2021-30211?

CVE-2021-30211 is a medium-severity cross-site scripting vulnerability in n/a, published on 12 May 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Knowage Suite 7.3 is vulnerable to Stored Cross-Site Scripting (XSS). An attacker can inject arbitrary web script in '/knowage/restful-services/signup/update' via the 'surname' parameter.

Weakness: CWE-79

Which versions are affected by CVE-2021-30211?

It affects 1 product.

Products include Eng Knowage.

How do I fix CVE-2021-30211?

No fix has been published for CVE-2021-30211 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-2021-30211 being exploited?

There is no known exploitation of CVE-2021-30211 in the wild and no public exploit code.

Sources

Also known as GHSA-8rrr-rr37-wgfc.