---
id: CVE-2026-104472
title: >-
  YesWiki before 4.6.7 contains a missing authorization vulnerability in the
  attachment download handler that allows unauthenticated attackers to bypass
  page read ACLs
summary: >-
  YesWiki before 4.6.7 contains a missing authorization vulnerability in the
  attachment download handler that allows unauthenticated attackers to bypass
  page read ACLs. Attackers can request the download handler with a known page
  tag and f…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-862
vendor: YesWiki
product: yeswiki
affected:
  - yeswiki < 4.6.7
published: '2026-10-02'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T12:17:20.317'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-104472'
references:
  - url: 'https://github.com/YesWiki/yeswiki/security/advisories/GHSA-7cj2-9pgf-vcw2'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-missing-authorization-via-attachment-download-handler
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-02T12:17:44.350Z'
---

## Overview

YesWiki before 4.6.7 contains a missing authorization vulnerability in the attachment download handler that allows unauthenticated attackers to bypass page read ACLs. Attackers can request the download handler with a known page tag and file parameter to retrieve confidential attachments from read-restricted pages.

## Remediation

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