CVE-2021-31908 Cross-site scripting in n/a
Stored XSS in TeamCity allows attackers to execute scripts in victim browsers, potentially leading to session hijacking or 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-2021-31908?
CVE-2021-31908 is a medium-severity cross-site scripting vulnerability in Jetbrains Teamcity, published on 11 May 2021. 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 2020.2.3, stored XSS was possible on several pages.
Weakness: CWE-79
Which versions are affected by CVE-2021-31908?
It affects 1 product.
Products include Jetbrains Teamcity.
How do I fix CVE-2021-31908?
No fix has been published for CVE-2021-31908 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-2021-31908 being exploited?
There is no known exploitation of CVE-2021-31908 in the wild and no public exploit code.
Other vulnerabilities in Jetbrains Teamcity
Sources
Also known as GHSA-pp43-c4m8-mq4p.