CVE-2020-19202 Cross-site scripting in n/a

Medium 5.4 Published 17 Jun 2021 Updated 4 Aug 2024

Authenticated users can inject malicious scripts into the Captive Portal login page title, potentially compromising other users' 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-2020-19202?

CVE-2020-19202 is a medium-severity cross-site scripting vulnerability in n/a, published on 17 Jun 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

An authenticated Stored XSS (Cross-site Scripting) exists in the "captive.cgi" Captive Portal via the "Title of Login Page" text box or "TITLE" parameter in IPFire 2.21 (x86_64) - Core Update 130. It allows an authenticated WebGUI user with privileges to execute Stored Cross-site Scripting in the Captive Portal page.

Weakness: CWE-79

Which versions are affected by CVE-2020-19202?

It affects 1 product.

Products include Ipfire Ipfire.

How do I fix CVE-2020-19202?

No fix has been published for CVE-2020-19202 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-2020-19202 being exploited?

There is no known exploitation of CVE-2020-19202 in the wild and no public exploit code.

Sources

Also known as GHSA-v8p8-4vxj-fh58.