CVE-2023-43319 Cross-site scripting in n/a

Medium 6.1 Published Updated

Attackers can execute arbitrary scripts via XSS in the Sign-In page username field, 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-2023-43319?

CVE-2023-43319 is a medium-severity cross-site scripting vulnerability in n/a, published on 25 Sep 2023. 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

Cross Site Scripting (XSS) vulnerability in the Sign-In page of IceWarp WebClient 10.3.5 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the username parameter.

Weakness: CWE-79

Which versions are affected by CVE-2023-43319?

It affects 1 product.

Products include Icewarp Webclient.

How do I fix CVE-2023-43319?

No fix has been published for CVE-2023-43319 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-2023-43319 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-43319 exists.

Sources

Also known as GHSA-w9qq-22xf-87fm.

Is CVE-2023-43319 in your software?

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