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Medium · 6.1 CVE-2026-116824 EUVD-2026-110531GHSA-wh6h-5cwg-jvgh

YesWiki before 4.7.0 Stored XSS via Referer Header in referrers_sites Handler

Published Oct 26, 2026 · Updated Oct 31, 2026 · Assigned by VulnCheck

Description

YesWiki before 4.7.0 contains a stored cross-site scripting vulnerability in handlers/page/referrers_sites.php that allows unauthenticated attackers to inject scripts via crafted Referer headers. Attackers can send a Referer hostname containing HTML metacharacters that renders unescaped, executing JavaScript for any referrer-sites page visitor to perform same-origin authenticated actions.

Affected products

VendorProductAffectedFixed
YesWiki yeswiki < 4.7.0 4.7.0

References