Is CVE-2026-18721 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-18721?

CVE-2026-18721 has a CVSS v3 severity of MEDIUM (4.3).

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CVE-2026-18721

Description

A vulnerability has been found in kalcaddle kodbox 1.67 Build 02. This issue affects some unknown processing of the file /user/sso/apiLogin of the component SSO API Login. The manipulation of the argument callbackUrl leads to open redirect. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.