CVE-2025-66149 MEDIUM

CVE-2025-66149: WordPress UnGrabber plugin <= 3.1.3 - Broken Access Control vulnerability

Vendor Merkulove

Product UnGrabber

Weakness CWE-862 · Missing authorization

Published December 31, 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 None

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Missing Authorization vulnerability in merkulove UnGrabber ungrabber allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects UnGrabber: from n/a through <= 3.1.3.

Explanation of Vulnerability in Simple Terms

02Summary

UnGrabber versions 3.1.3 and earlier lack proper authorization checks, allowing authenticated users with low privileges to modify or disable functionality they should not access. An attacker with a basic user account can alter site behavior or availability without proper permission validation. Update to a version newer than 3.1.3.

What an attacker can do

03Attacker Capabilities

Modify or disable site functionality as a low-privilege authenticated user.

Potential impact on your site

04Site Impact

Unauthorized users can alter or disable UnGrabber features, potentially disrupting site operations.

Conditions required to exploit

05Prerequisites

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

Key dates

06Disclosure timeline

December 31, 2025 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2025-66149 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/862.html

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