Is CVE-2026-57803 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-57803?

CVE-2026-57803 has a CVSS v3 severity of HIGH (7.5).

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CVE-2026-57803

Description

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in Select-Themes Struktur Core struktur-core allows PHP Local File Inclusion.This issue affects Struktur Core: from n/a through <= 2.5.1.