CVE-2026-116822

Medium

Description

YesWiki before 4.7.0 contains a path traversal vulnerability in BazarListeAction that allows unauthenticated attackers to select arbitrary templates within the @bazar Twig namespace via the template GET parameter. Attackers can append crafted template values to pages containing the bazarliste action to force unintended layouts, causing page defacement for visitors following the crafted link.

SeverityMedium

CVSS5.3

Exploit probability—

Product

Yeswiki

PublishedOct 27, 2026

First seenOct 27, 2026

Weakness typeCWE-73CWE-73

How to fix

Update

YesWiki yeswiki4.7.0 or later

Vendor advisories

github.com/YesWiki/yeswiki/security/advisories/GHSA-qfv2-x8g4-qg27

Affected products

Product	Affected versions	Fixed in
YesWiki yeswiki	v < 4.7.0	4.7.0

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