CVE-2025-63498 Cross-site scripting in n/a

Medium 6.1 Published Updated

Cross-site scripting in SOGo allows attackers to inject scripts via the userName parameter, potentially leading to session hijacking or malicious actions.

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
Available

What is CVE-2025-63498?

CVE-2025-63498 is a medium-severity cross-site scripting vulnerability in Debian Debian Linux, published on 24 Nov 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

alinto SOGo 5.12.3 is vulnerable to Cross Site Scripting (XSS) via the "userName" parameter.

Weakness: CWE-79

Which versions are affected by CVE-2025-63498?

It affects 2 products.

Products include Alinto Sogo, Debian Debian Linux.

How do I fix CVE-2025-63498?

Apply the vendor's patch.

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-2025-63498 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-63498 exists.

Public exploit code: 1 proofs of concept on GitHub.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2025-63498, DLA-4386-1, GHSA-5mj7-xm92-5p4m, UBUNTU-CVE-2025-63498.

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