What is CVE-2026-93453?

CVE-2026-93453 is a high-severity vulnerability in Alinto Sogo, classified under Weak Password Recovery Mechanism for Forgotten Password. CVSS score: 8.3/10. Published 2026-09-18.

How severe is CVE-2026-93453?

High severity. CVSS v3 base score is 8.3 out of 10.

Vulnerability in Alinto Sogo

CVE-2026-93453

SOGo before 5.12.11 constructs password-reset links using the client-supplied Origin header as the authority, allowing unauthenticated attackers to redirect recovery tokens to attacker-controlled domains. Attackers can submit password recovery requests with a malicious Origin header to have valid password-reset tokens mailed to victim recovery addresses within links pointing to attacker infrastructure, enabling account takeover.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L.

Affected products

Alinto Sogo

Weakness classification (CWE)

CWE-640 — Weak Password Recovery Mechanism for Forgotten Password

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-93453?: CVE-2026-93453 is a high-severity vulnerability in Alinto Sogo, classified under Weak Password Recovery Mechanism for Forgotten Password. CVSS score: 8.3/10. Published 2026-09-18.
How severe is CVE-2026-93453?: High severity. CVSS v3 base score is 8.3 out of 10.