What’s Vulnerable › Vulnerabilities

CVE-2026-93453: SOGo before 5.12.11 Password Reset Token Interception via Origin Header

• Severity: high (CVSS 8.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-18 · updated 2026-09-22
• Weakness: CWE-640

Description

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.

Affected products

• Alinto SOGo: before 5.12.11 — fixed in 5.12.11

How to fix

Upgrade to a fixed version: Alinto SOGo 5.12.11. Check the vendor advisory for mitigations.

References

• https://github.com/Alinto/sogo
• https://github.com/Alinto/sogo/blob/SOGo-5.12.10/UI/MainUI/SOGoRootPage.m#L1375
• https://github.com/Alinto/sogo/commit/04a3e9823889acaf6c247b224f5f7a0108f8f829
• https://github.com/Alinto/sogo/commit/382118a93b6925de2ce7f774abc1865ebea2dbba
• https://www.sogo.nu/news/2026/sogo-v51211-released.html
• https://www.vulncheck.com/advisories/sogo-before-5.12.11-password-reset-token-interception-via-origin-header

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