---
id: CVE-2026-104470
title: >-
  YesWiki before 4.6.7 contains a server-side request forgery vulnerability that
  allows page editors to make the server fetch arbitrary URLs via the url
  parameter of the Bazar valeur action
summary: >-
  YesWiki before 4.6.7 contains a server-side request forgery vulnerability that
  allows page editors to make the server fetch arbitrary URLs via the url
  parameter of the Bazar valeur action. Attackers can embed the action with a
  champ para…
severity: medium
cvss: 5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N'
cwe:
  - CWE-918
  - CWE-79
vendor: YesWiki
product: yeswiki
affected:
  - yeswiki < 4.6.7
published: '2026-10-02'
updated: '2026-10-04'
sourceUpdated: '2026-10-04T16:16:29.807'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-104470'
references:
  - url: >-
      https://github.com/YesWiki/yeswiki/commit/22a5260b0381824e01d340ce9457c4adb9e18b23
    label: disclosure@vulncheck.com
  - url: 'https://github.com/YesWiki/yeswiki/security/advisories/GHSA-6rvf-7pwm-6j44'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-ssrf-via-bazar-valeur-action-url-parameter
    label: disclosure@vulncheck.com
  - url: 'https://github.com/YesWiki/yeswiki/security/advisories/GHSA-6rvf-7pwm-6j44'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-ssrf-and-xss-via-bazar-valeur-action
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
  - exploit-available
  - score-dispute
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-02T15:19:21.179056Z'
epss: 0.00243
epssPercentile: 0.15553
scores:
  nvd: 7.4
  cna: 5
ingestedAt: '2026-10-02T12:17:44.350Z'
---

## Overview

YesWiki before 4.6.7 contains a server-side request forgery vulnerability that allows page editors to make the server fetch arbitrary URLs via the url parameter of the Bazar valeur action. Attackers can embed the action with a champ parameter in wiki markup to reach loopback or internal services and partially read responses rendered into the page.

## Remediation

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