CVE-2024-56003 MEDIUM

CVE-2024-56003: WordPress Caldera SMTP Mailer plugin <= 1.0.1 - Broken Access Control vulnerability

Vendor David Cramer

Product Caldera SMTP Mailer

Weakness CWE-862 · Missing authorization

Published December 16, 2024

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

4.3/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality None

Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

What the vulnerability does

01Description

Missing Authorization vulnerability in David Cramer Caldera SMTP Mailer caldera-smtp-mailer.This issue affects Caldera SMTP Mailer: from n/a through <= 1.0.1.

Explanation of Vulnerability in Simple Terms

02Summary

Caldera SMTP Mailer versions 1.0.1 and earlier lack proper authorization checks on certain functions. A logged-in user with low privileges can modify email settings or configuration without proper permission validation. The vulnerability does not expose sensitive data or cause service disruption, but allows unauthorized changes to site email behavior.

What an attacker can do

03Attacker Capabilities

Modify email settings or SMTP configuration without proper authorization.

Potential impact on your site

04Site Impact

Unauthorized users could alter how your site sends emails, potentially disrupting notifications or redirecting mail.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account on the site.

Key dates

06Disclosure timeline

December 16, 2024 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2024-56003 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/862.html AskarLabs — CWE-862 write-up Missing Authorization

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