CVE-2019-9540 Telos Automated Message Handling System reflected XSS in prefs.asp

Medium 6.1 Published 3 Jan 2020 Updated 4 Aug 2024

Remote attackers can inject arbitrary scripts into AMHS sessions via reflected XSS in prefs.asp, potentially compromising user 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-2019-9540?

CVE-2019-9540 is a medium-severity cross-site scripting vulnerability in Telos Automated Message Handling System, published on 3 Jan 2020. 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

: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in prefs.asp of Telos Automated Message Handling System allows a remote attacker to inject arbitrary script into an AMHS session. This issue affects: Telos Automated Message Handling System versions prior to 4.1.5.5.

Weakness: CWE-79

Which versions are affected by CVE-2019-9540?

It affects 1 product.

Products include Telos Automated Message Handling System.

How do I fix CVE-2019-9540?

No fix has been published for CVE-2019-9540 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-2019-9540 being exploited?

There is no known exploitation of CVE-2019-9540 in the wild and no public exploit code.

Sources

Also known as GHSA-qqr6-25h8-4f8f.