Is CVE-2026-117537 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-117537?

CVE-2026-117537 has a CVSS v3 severity of MEDIUM (4.1).

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CVE-2026-117537

Description

REDAXO before 5.21.0 contains a reflected cross-site scripting vulnerability that allows authenticated attackers to inject scripts via the type parameter of the metainfo_default_fields_create API. Attackers can craft a link with a valid CSRF token and HTML payload that rex_view::message() renders unescaped, executing scripts in a victim's backend session.