CVE-2026-116822

YesWiki before 4.7.0 Template Traversal via BazarListeAction template Parameter

State: Published
Severity: 6.9 Medium
Published: Oct 26, 2026
Updated: Oct 27, 2026
Reserved: Oct 26, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N	VulnCheck

Weaknesses

CWE-73 External Control of File Name or Path

Affected Products

Product	Versions
yeswikiYesWiki	before 4.7.0Affected 4.7.0Not affected

References

GitHub Security Advisory (GHSA-qfv2-x8g4-qg27)vendor-advisory
VulnCheck Advisory: YesWiki before 4.7.0 Template Traversal via BazarListeAction template Parameterthird-party-advisory

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