CVE-2026-57813
Received Received - Intake

BaseFortify

Publication date: 2026-07-13

Last updated on: 2026-07-13

Assigner: Patchstack

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

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Meta Information

Published
2026-07-13
Last Modified
2026-07-13
Generated
2026-07-13
AI Q&A
2026-07-13
EPSS Evaluated
N/A
NVD
CVE-2026-57813
EUVD
EUVD-2026-43425

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
mailoptin mailoptin to 1.2.77.3 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-266 A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.

Attack-Flow Graph

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Mitigation Strategies

To mitigate the CVE-2026-57813 vulnerability in the MailOptin plugin, you should immediately update the plugin to version 1.2.78.0 or later.

If updating is not possible, seek assistance from your hosting provider or web developer.

Additionally, Patchstack has provided a mitigation rule to block attacks targeting this vulnerability until the plugin can be updated.

Executive Summary

CVE-2026-57813 is a high-priority Privilege Escalation vulnerability in the WordPress MailOptin Plugin versions 1.2.77.3 and below.

This flaw allows unauthenticated attackers to escalate their privileges, potentially gaining full control over affected websites.

The vulnerability is actively exploitable and falls under the OWASP Top 10 category A7, which relates to Identification and Authentication Failures.

Impact Analysis

If exploited, this vulnerability can allow attackers to gain full control of your website by escalating their privileges without authentication.

This can lead to unauthorized access, data breaches, website defacement, or use of your site for malicious activities.

The issue is actively exploited in mass campaigns targeting thousands of sites, making immediate mitigation critical.

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