CVE-2023-34220 Cross-site scripting in TeamCity
Stored XSS in TeamCity Commit Status Publisher allows attackers to execute scripts in victim browsers, potentially leading to account takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-34220?
CVE-2023-34220 is a medium-severity cross-site scripting vulnerability in Jetbrains Teamcity, published on 31 May 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
In JetBrains TeamCity before 2023.05 stored XSS in the Commit Status Publisher window was possible
Weakness: CWE-79
Which versions are affected by CVE-2023-34220?
It affects 1 product.
Products include Jetbrains Teamcity.
How do I fix CVE-2023-34220?
No fix has been published for CVE-2023-34220 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-2023-34220 being exploited?
There is no known exploitation of CVE-2023-34220 in the wild and no public exploit code.
Other vulnerabilities in Jetbrains Teamcity
Sources
Also known as GHSA-ggq6-w2w9-jjw6.