Is CVE-2026-57813 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-57813?

CVE-2026-57813 has a CVSS v3 severity of CRITICAL (9.8).

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CVE-2026-57813

Description

Incorrect Privilege Assignment vulnerability in properfraction MailOptin mailoptin allows Privilege Escalation.This issue affects MailOptin: from n/a through <= 1.2.77.3.