Is CVE-2026-104449 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-104449?

CVE-2026-104449 has a CVSS v3 severity of MEDIUM (6.5).

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CVE-2026-104449

Description

YesWiki before 4.6.7 contains an access control vulnerability allowing unauthenticated attackers to overwrite any existing wiki page, including pages whose write ACL restricts editing, via the Bazar entry-creation flow. Attackers can submit a crafted entry with an attacker-controlled id_fiche matching an existing page, overwriting its body for mass defacement and content destruction.