CVE-2023-43103 Cross-site scripting in n/a

Medium 6.1 Published 7 Dec 2023 Updated 2 Aug 2024

Attackers can execute arbitrary scripts in user browsers via an unsanitized parameter in Zimbra Collaboration web endpoints.

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-2023-43103?

CVE-2023-43103 is a medium-severity cross-site scripting vulnerability in n/a, published on 7 Dec 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

An XSS issue was discovered in a web endpoint in Zimbra Collaboration (ZCS) before 10.0.4 via an unsanitized parameter. This is also fixed in 8.8.15 Patch 43 and 9.0.0 Patch 36.

Weakness: CWE-79

Which versions are affected by CVE-2023-43103?

It affects 1 product.

Products include Zimbra Collaboration.

How do I fix CVE-2023-43103?

No fix has been published for CVE-2023-43103 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-2023-43103 being exploited?

There is no known exploitation of CVE-2023-43103 in the wild and no public exploit code.

Sources

Also known as GHSA-5qw2-vv35-xqx6.