CVE-2019-18791 Cross-site scripting in n/a

Medium 5.4 Published 13 Feb 2020 Updated 5 Aug 2024

Stored XSS in Lexmark printer web servers allows attackers to steal session credentials and sensitive information from users.

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-2019-18791?

CVE-2019-18791 is a medium-severity cross-site scripting vulnerability in n/a, published on 13 Feb 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Lexmark printer MS812 and multiple older generation Lexmark devices have a stored XSS vulnerability in the embedded web server. The vulnerability can be exploited to expose session credentials and other information via the users web browser.

Weakness: CWE-79

Which versions are affected by CVE-2019-18791?

It affects 80 products.

Products include Lexmark 6500e Firmware, Lexmark C734 Firmware, Lexmark C736 Firmware, Lexmark C746 Firmware, Lexmark C748 Firmware, Lexmark C792 Firmware and 74 more.

How do I fix CVE-2019-18791?

No fix has been published for CVE-2019-18791 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-2019-18791 being exploited?

There is no known exploitation of CVE-2019-18791 in the wild and no public exploit code.

Sources

Also known as GHSA-4v8q-wq3r-x874.