CVE-2020-9443 Cross-site scripting in n/a
Attackers can execute arbitrary scripts in Zulip Desktop by exploiting disabled web security in Electron webviews, potentially compromising user sessions.
- 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-2020-9443?
CVE-2020-9443 is a medium-severity cross-site scripting vulnerability in n/a, published on 18 Mar 2020. 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
Zulip Desktop before 4.0.3 loaded untrusted content in an Electron webview with web security disabled, which can be exploited for XSS in a number of ways. This especially affects Zulip Desktop 2.3.82.
Weakness: CWE-79
Which versions are affected by CVE-2020-9443?
It affects 1 product.
Products include Zulipchat Zulip Desktop.
How do I fix CVE-2020-9443?
No fix has been published for CVE-2020-9443 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-2020-9443 being exploited?
There is no known exploitation of CVE-2020-9443 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-mmgh-298q-2qxp.