Is CVE-2026-57813 actively exploited?

No active exploitation of CVE-2026-57813 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-57813 be exploited remotely?

Yes. CVE-2026-57813 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-57813?

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

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CRITICAL

CVE-2026-57813

CWE-266Published: July 13, 2026· Updated: Jul 13, 2026

9.8

CVSS v3.1

EPSS:0.27%probability of exploitation in 30 daysPercentile:18.5th

Official Description

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

NVD Source

Risk Analysis

This critical vulnerability in properfraction MailOptin, with a CVSS score of 9.8, is an incorrect privilege assignment flaw that allows privilege escalation. An attacker could gain higher privileges than intended, potentially leading to full system compromise. The very high CVSS score indicates extreme urgency.

No public exploit is currently known for this vulnerability. Its network attack vector and low attack complexity mean it is remotely exploitable without user interaction.

Recommended Action

Users of properfraction MailOptin should update to a version beyond 1.2.77.3 to address this vulnerability. Regularly reviewing and enforcing proper privilege assignments is a critical security practice.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2026-57813 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.