CVE-2023-46238 XSS with User Avatar image in ZITADEL

High 8.7 Published 26 Oct 2023 Updated 17 Sep 2024

Attackers can execute scripts via malicious SVG avatars to hijack user accounts if victims open the image directly while logged in.

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-2023-46238?

CVE-2023-46238 is a high-severity cross-site scripting vulnerability in zitadel, published on 26 Oct 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

ZITADEL is an identity infrastructure management system. ZITADEL users can upload their own avatar image using various image types including SVG. SVG can include scripts, such as javascript, which can be executed during rendering. Due to a missing security header, an attacker could inject code to an SVG to gain access to the victim’s account in certain scenarios. A victim would need to directly open the malicious image in the browser, where a single session in ZITADEL needs to be active for this exploit to work. If the possible victim had multiple or no active sessions in ZITADEL, the attack would not succeed. This issue has been patched in version 2.39.2 and 2.38.2.

Weakness: CWE-79

Which versions are affected by CVE-2023-46238?

It affects 1 product.

Products include Zitadel Zitadel.

How do I fix CVE-2023-46238?

No fix has been published for CVE-2023-46238 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-2023-46238 being exploited?

There is no known exploitation of CVE-2023-46238 in the wild and no public exploit code.

Sources

Also known as GHSA-954h-jrpm-72pm.