---
id: CVE-2026-93453
title: >-
  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
summary: >-
  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
  re…
severity: high
cvss: 8.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L'
cwe:
  - CWE-640
vendor: Alinto
product: SOGo
affected:
  - SOGo < 5.12.11
published: '2026-09-18'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T20:43:58.793'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93453'
references:
  - url: 'https://github.com/Alinto/sogo'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/Alinto/sogo/blob/SOGo-5.12.10/UI/MainUI/SOGoRootPage.m#L1375
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/Alinto/sogo/commit/04a3e9823889acaf6c247b224f5f7a0108f8f829
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/Alinto/sogo/commit/382118a93b6925de2ce7f774abc1865ebea2dbba
    label: disclosure@vulncheck.com
  - url: 'https://www.sogo.nu/news/2026/sogo-v51211-released.html'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/sogo-before-5.12.11-password-reset-token-interception-via-origin-header
    label: disclosure@vulncheck.com
tags:
  - nvd
  - exploit-available
  - cve.org
epss: 0.00491
epssPercentile: 0.39621
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/Faceless0x7/CVE-2026-93453'
  checkedAt: '2026-09-26T09:06:06.639Z'
exploitAvailable: true
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-18T18:02:33.954501Z'
ingestedAt: '2026-09-17T23:31:20.691Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.