CVE-2025-53343 MEDIUM

CVE-2025-53343: WordPress Modernize Theme <= 3.4.0 - Broken Access Control Vulnerability

Vendor Goodlayers

Product Modernize

Weakness CWE-862 · Missing authorization

Published August 14, 2025

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 GoodLayers Modernize modernize allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Modernize: from n/a through <= 3.4.0.

Explanation of Vulnerability in Simple Terms

02Summary

Modernize by GoodLayers versions 3.4.0 and earlier lack proper authorization checks on certain functions. A logged-in user with low privileges can modify data they should not have access to. The vulnerability does not affect confidentiality or availability, only data integrity. Update to a version newer than 3.4.0.

What an attacker can do

03Attacker Capabilities

A low-privilege logged-in user can modify data they should not have permission to change.

Potential impact on your site

04Site Impact

Unauthorized users may alter site content or settings they should not be able to modify.

Conditions required to exploit

05Prerequisites

Attacker must have a valid user account with low privileges on the site.

Key dates

06Disclosure timeline

August 14, 2025 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2025-53343 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/862.html

Related vulnerabilities