CVE-2024-45515 Cross-site scripting in n/a

Medium 6.1 Published 30 Jul 2025 Updated 30 Jul 2025

Attackers can execute arbitrary JavaScript in victim sessions via crafted file metadata in Zimbra webmail briefcase imports.

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-2024-45515?

CVE-2024-45515 is a medium-severity cross-site scripting vulnerability in n/a, published on 30 Jul 2025. 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

An issue was discovered in Zimbra Collaboration (ZCS) through 10.1. A Cross-Site Scripting (XSS) vulnerability exists in Zimbra webmail due to insufficient validation of the content type metadata when importing files into the briefcase. Attackers can exploit this issue by crafting a file with manipulated metadata, allowing them to bypass content type checks and execute arbitrary JavaScript within the victim's session.

Weakness: CWE-79

Which versions are affected by CVE-2024-45515?

It affects 1 product.

Products include Zimbra Collaboration.

How do I fix CVE-2024-45515?

No fix has been published for CVE-2024-45515 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-2024-45515 being exploited?

There is no known exploitation of CVE-2024-45515 in the wild and no public exploit code.

Sources

Also known as GHSA-63g8-5j2r-qj8f.