CVE-2021-38377 Cross-site scripting in n/a

Medium 6.1 Published 22 Nov 2021 Updated 4 Aug 2024

Attackers can execute arbitrary JavaScript in victim browsers via crafted email comments due to predictable UUIDs in HTML transformation.

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-2021-38377?

CVE-2021-38377 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 Nov 2021. 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

OX App Suite through 7.10.5 allows XSS via JavaScript code in an anchor HTML comment within truncated e-mail, because there is a predictable UUID with HTML transformation results.

Weakness: CWE-330

Which versions are affected by CVE-2021-38377?

It affects 1 product.

Products include Open-Xchange Ox App Suite.

How do I fix CVE-2021-38377?

No fix has been published for CVE-2021-38377 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-2021-38377 being exploited?

There is no known exploitation of CVE-2021-38377 in the wild and no public exploit code.

Sources

Also known as GHSA-jm3c-54xp-46qx.