Is CVE-2026-116203 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-116203?

CVE-2026-116203 has a CVSS v3 severity of MEDIUM (6.1).

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CVE-2026-116203

Description

YesWiki before 4.7.0 contains a stored cross-site scripting vulnerability in the filtertags action, which echoes attacker-controlled token values without output encoding. Anonymous attackers can inject markup via action-attribute parameters that bypasses the allow_raw_html gate, executing JavaScript for every page viewer.