---
id: CVE-2026-104464
title: >-
  YesWiki before 4.6.7 contains a server-side request forgery vulnerability that
  allows unauthenticated attackers to make server-side GET requests by supplying
  an unvalidated actor URL to the Bazar abonnements sync action
summary: >-
  YesWiki before 4.6.7 contains a server-side request forgery vulnerability that
  allows unauthenticated attackers to make server-side GET requests by supplying
  an unvalidated actor URL to the Bazar abonnements sync action. Attackers can
  ta…
severity: high
cvss: 8.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L'
cwe:
  - CWE-918
vendor: YesWiki
product: yeswiki
affected:
  - yeswiki < 4.6.7
published: '2026-10-02'
updated: '2026-10-02'
sourceUpdated: '2026-10-02T12:17:19.007'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-104464'
references:
  - url: 'https://github.com/YesWiki/yeswiki/security/advisories/GHSA-wcjp-v62j-p5xm'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-ssrf-via-bazar-abonnements-sync-actor-parameter
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-02T12:17:44.344Z'
---

## Overview

YesWiki before 4.6.7 contains a server-side request forgery vulnerability that allows unauthenticated attackers to make server-side GET requests by supplying an unvalidated actor URL to the Bazar abonnements sync action. Attackers can target internal hosts or cloud metadata endpoints and chain attacker-controlled outbox first/next links, with fetched responses stored as readable Bazar entries.

## Remediation

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