CVE-2026-27056 MEDIUM

CVE-2026-27056: WordPress iThemes Sync plugin <= 3.2.8 - Broken Access Control vulnerability

Vendor Stellarwp
Product iThemes Sync
Weakness CWE-862 · Missing authorization
Published February 19, 2026
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 StellarWP iThemes Sync ithemes-sync allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects iThemes Sync: from n/a through <= 3.2.8.

Explanation of Vulnerability in Simple Terms

02Summary

iThemes Sync versions 3.2.8 and earlier lack proper authorization checks, allowing authenticated users with low privileges to modify data they should not have access to. The vulnerability requires a valid user account but no special interaction. Site administrators should update to a version newer than 3.2.8 to prevent unauthorized modifications by low-privilege users.

What an attacker can do

03Attacker Capabilities

Modify data or settings they should not have permission to change.

Potential impact on your site

04Site Impact

Low-privilege users can alter site data or configuration without proper authorization.

Conditions required to exploit

05Prerequisites

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

Key dates

06Disclosure timeline

February 19, 2026 CVE published
April 28, 2026 Record updated