Vulnerability · Published Feb 24, 2026 · Assigned by VulDB

CVE-2026-3054Alinto SOGo cross site scripting

Medium 4.3

In plain English

A medium-severity cross-site scripting in SOGo from Alinto. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.5%top 60.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	sogo	no fix listed	DEBIAN-CVE-2026-3054
Debian:13	sogo	5.12.1-3+deb13u2	DEBIAN-CVE-2026-3054
Ubuntu:25.10	sogo	no fix listed	UBUNTU-CVE-2026-3054

Affected products (as reported)

Vendor	Product	Versions
Alinto	SOGo	5.12.35.12.4

Weakness: CWE-79, CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C

References

VDB-347412 | Alinto SOGo cross site scripting vdb-entry, technical-description
VDB-347412 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #757609 | Inverse / SOGo Community SOGo Groupware 5.12.3 - 5.12.4 Cross Site Scripting third-party-advisory