CVE-2021-43186 Cross-site scripting in n/a
Attackers can inject malicious scripts into JetBrains YouTrack, potentially stealing user sessions or executing code in victim browsers.
- 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-2021-43186?
CVE-2021-43186 is a medium-severity cross-site scripting vulnerability in Jetbrains Youtrack, published on 9 Nov 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
JetBrains YouTrack before 2021.3.24402 is vulnerable to stored XSS.
Weakness: CWE-79
Which versions are affected by CVE-2021-43186?
It affects 1 product.
Products include Jetbrains Youtrack.
How do I fix CVE-2021-43186?
No fix has been published for CVE-2021-43186 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-2021-43186 being exploited?
There is no known exploitation of CVE-2021-43186 in the wild and no public exploit code.
Other vulnerabilities in Jetbrains Youtrack
Sources
Also known as GHSA-2gmp-3cgc-4vg7.