Is CVE-2026-104438 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-104438?

CVE-2026-104438 has a CVSS v3 severity of MEDIUM (5.3).

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CVE-2026-104438

Description

YesWiki before 4.6.7 contains a missing authorization vulnerability in the listpagestag and includepages actions of the tags tool, which enumerate pages without applying read-ACL filtering. Unauthenticated or unprivileged attackers can embed these actions with a chosen tag or page name to disclose the names and body-derived titles of ACL-restricted pages.