CVE-2026-28181 MEDIUM

CVE-2026-28181: WordPress AcyMailing SMTP Newsletter plugin <= 10.11.1 - Broken Access Control vulnerability

Vendor Acymailing Newsletter Team

Product AcyMailing SMTP Newsletter

Weakness CWE-862 · Missing authorization

Published August 13, 2026

Last update August 13, 2026

View on NVD All CVEs

CVSS base score

6.5/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality High

Integrity None

CVSS vector

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

What the vulnerability does

01Description

Subscriber Broken Access Control in AcyMailing SMTP Newsletter <= 10.11.1 versions.

Explanation of Vulnerability in Simple Terms

02Summary

AcyMailing SMTP Newsletter versions up to 10.11.1 lack proper authorization checks, allowing authenticated users with low privileges to read sensitive data they should not access. An attacker with a standard user account can retrieve confidential information without additional interaction. Update to a version newer than 10.11.1 to resolve this issue.

What an attacker can do

03Attacker Capabilities

Read sensitive data (like other users' information) that should be restricted to higher-privilege accounts.

Potential impact on your site

04Site Impact

User data and newsletter information may be exposed to any authenticated user, compromising privacy and confidentiality.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account on the site; no special interaction required.

Key dates

06Disclosure timeline

August 13, 2026 CVE published

August 13, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-28181 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/862.html AskarLabs — CWE-862 write-up Missing Authorization

Related vulnerabilities

Identifiers

CVE CVE-2026-28181

CWE CWE-862

CVSS 6.5 / MEDIUM

Affected versions