---
id: CVE-2026-104441
title: >-
  YesWiki before 4.6.7 contains an unauthenticated server-side request forgery
  vulnerability that allows remote attackers to make the server fetch arbitrary
  hosts and ports via the {{valeur}} action's url parameter
summary: >-
  YesWiki before 4.6.7 contains an unauthenticated server-side request forgery
  vulnerability that allows remote attackers to make the server fetch arbitrary
  hosts and ports via the {{valeur}} action's url parameter. Attackers can
  submit th…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-918
vendor: YesWiki
product: yeswiki
affected:
  - yeswiki < 4.6.7
published: '2026-10-02'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T12:17:15.110'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-104441'
references:
  - url: 'https://github.com/YesWiki/yeswiki/security/advisories/GHSA-pghp-rrp4-q666'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-unauthenticated-ssrf-via-valeur-action
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-02T12:17:44.336Z'
---

## Overview

YesWiki before 4.6.7 contains an unauthenticated server-side request forgery vulnerability that allows remote attackers to make the server fetch arbitrary hosts and ports via the {{valeur}} action's url parameter. Attackers can submit the action through the content parameter of handlers/page/render.php to probe internal HTTP services and read back response content matching fiche markup.

## Remediation

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