CVE-2021-32542 SysJust CTS Web - Reflected XSS

Medium 4.7 Published Updated

Unauthenticated attackers can execute reflected XSS to steal user connection tokens in the SysJust CTS Web trading system.

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-2021-32542?

CVE-2021-32542 is a medium-severity cross-site scripting vulnerability in SysJust CTS Web, published on 28 May 2021. 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

The parameters of the specific functions in the CTS Web trading system do not filter special characters, which allows unauthenticated attackers can remotely perform reflected XSS and obtain the users’ connection token that triggered the attack.

Weakness: CWE-79

Which versions are affected by CVE-2021-32542?

It affects 1 product.

Products include Sysjust Cts Web.

How do I fix CVE-2021-32542?

No fix has been published for CVE-2021-32542 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-2021-32542 being exploited?

There is no known exploitation of CVE-2021-32542 in the wild and no public exploit code.

Sources

Also known as GHSA-f5hm-hjxq-fhw3.

Is CVE-2021-32542 in your software?

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