---
id: CVE-2026-104452
title: >-
  YesWiki before 4.6.7 contains a cross-site request forgery vulnerability in
  the filemanager page handler, which deletes page attachments on GET requests
  without validating a CSRF token
summary: >-
  YesWiki before 4.6.7 contains a cross-site request forgery vulnerability in
  the filemanager page handler, which deletes page attachments on GET requests
  without validating a CSRF token. Attackers can lure a logged-in page owner or
  admini…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L'
cwe:
  - CWE-352
vendor: YesWiki
product: yeswiki
affected:
  - yeswiki < 4.6.7
published: '2026-10-02'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T12:17:16.957'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-104452'
references:
  - url: 'https://github.com/YesWiki/yeswiki/security/advisories/GHSA-7m4h-m7qm-hc32'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-csrf-attachment-deletion-via-filemanager-handler
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-02T12:17:44.340Z'
---

## Overview

YesWiki before 4.6.7 contains a cross-site request forgery vulnerability in the filemanager page handler, which deletes page attachments on GET requests without validating a CSRF token. Attackers can lure a logged-in page owner or administrator into a top-level GET navigation with do=del, erase, or emptytrash, deleting or permanently purging the page's attachments.

## Remediation

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