CVE-2026-116205

Medium

Description

YesWiki before 4.7.0 contains an unauthenticated server-side request forgery vulnerability that allows remote attackers to fetch arbitrary URLs by supplying [[|URL]] wiki syntax to the render handler. Attackers can pass the syntax in the content parameter of the page render handler to reach internal hosts and ports and read their responses.

SeverityMedium

CVSS5.3

Exploit probability—

Product

Yeswiki

PublishedOct 25, 2026

First seenOct 25, 2026

Weakness typeCWE-918Server-side request forgery (SSRF)

How to fix

Update

YesWiki yeswiki4.7.0 or later

Vendor advisories

github.com/YesWiki/yeswiki/security/advisories/GHSA-x9j5-r988-9jcc

Affected products

Product	Affected versions	Fixed in
YesWiki yeswiki	v < 4.7.0	4.7.0

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