CVE-2023-43566 Cross-site scripting in TeamCity

Low 3.5 Published Updated

Stored XSS in TeamCity nodes configuration allows attackers to execute scripts in victim browsers, potentially leading to account takeover.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2023-43566?

CVE-2023-43566 is a low-severity cross-site scripting vulnerability in Jetbrains Teamcity, published on 19 Sep 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

In JetBrains TeamCity before 2023.05.4 stored XSS was possible during nodes configuration

Weakness: CWE-79

Which versions are affected by CVE-2023-43566?

It affects 1 product.

Products include Jetbrains Teamcity.

How do I fix CVE-2023-43566?

No fix has been published for CVE-2023-43566 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-2023-43566 being exploited?

There is no known exploitation of CVE-2023-43566 in the wild and no public exploit code.

All Jetbrains Teamcity vulnerabilities

Sources

Also known as GHSA-56qf-rm6g-9hvq.

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