Is CVE-2026-74921 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-74921?

CVE-2026-74921 has a CVSS v3 severity of MEDIUM (6.8).

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CVE-2026-74921

Description

The Document Gallery WordPress plugin through 5.1.1 does not sanitise or escape several gallery shortcode attributes before embedding them in a single-quoted HTML attribute in the rendered gallery markup, allowing users with the Contributor role and above to inject arbitrary event handlers that execute when a higher privileged user views the content.