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Medium · 6.1 CVE-2026-116823 EUVD-2026-110530GHSA-5rxq-hc4r-x8r8

YesWiki before 4.7.0 Reflected XSS via BazarField $_REQUEST Fallback

Published Oct 26, 2026 · Updated Nov 3, 2026 · Assigned by VulnCheck

Description

YesWiki before 4.7.0 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject JavaScript by supplying query parameters matching missing Bazar field names. Attackers can craft links where BazarField::getValue() falls back to unsanitized $_REQUEST values rendered via Twig |raw templates, performing same-origin authenticated actions in victims' sessions.

Affected products

VendorProductAffectedFixed
YesWiki yeswiki < 4.7.0 4.7.0

References