CVE-2026-3054 Alinto SOGo cross site scripting
Remote attackers can execute arbitrary scripts via the hint argument in Alinto SOGo, potentially compromising user accounts.
- 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-2026-3054?
CVE-2026-3054 is a medium-severity cross-site scripting vulnerability in Alinto SOGo, published on 24 Feb 2026. 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
A vulnerability was identified in Alinto SOGo 5.12.3/5.12.4. This impacts an unknown function. The manipulation of the argument hint leads to cross site scripting. The attack can be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-3054?
It affects 1 product.
Products include Alinto Sogo.
How do I fix CVE-2026-3054?
No fix published yet.
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-2026-3054 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3054 exists.
Other vulnerabilities in Alinto SOGo
Sources
Also known as DEBIAN-CVE-2026-3054, GHSA-47ph-5j6m-fmgx, UBUNTU-CVE-2026-3054.