CVE-2025-66167 MEDIUM

CVE-2025-66167: WordPress Lottier plugin <= 1.1.1 - Broken Access Control vulnerability

Vendor Merkulove

Product Lottier

Weakness CWE-862 · Missing authorization

Published December 16, 2025

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

5.4/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality Low

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Missing Authorization vulnerability in merkulove Lottier lottier-gutenberg allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Lottier: from n/a through <= 1.1.1.

Explanation of Vulnerability in Simple Terms

02Summary

Lottier versions 1.1.1 and earlier lack proper authorization checks, allowing authenticated users to read or modify data they should not have access to. An attacker with a low-privilege account can view or alter sensitive information without additional interaction. The vulnerability affects confidentiality and integrity but not availability.

What an attacker can do

03Attacker Capabilities

Read or modify data belonging to other users or restricted areas of the application.

Potential impact on your site

04Site Impact

User data and site content may be exposed to or modified by unauthorized account holders.

Conditions required to exploit

05Prerequisites

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

Key dates

06Disclosure timeline

December 16, 2025 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2025-66167 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/862.html

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