CVE-2026-65887 CRITICAL

CVE-2026-65887: Joomla Extension - balbooa.com - Unauthenticated arbitrary password reset in Gridbox < 2.20.2

Vendor Balbooa.com
Product Gridbox extension for Joomla
Weakness CWE-284
Published July 29, 2026
Last update August 1, 2026

CVSS base score

10.0/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y/U:Red

What the vulnerability does

01Description

Joomla Extension - balbooa.com - Unauthenticated arbitrary password reset in Gridbox < 2.20.2 - The resetPassword method allows actors to reset any user password, allowing to login and act as these users - excluding super admins.

Explanation of Vulnerability in Simple Terms

02Summary

The Gridbox extension for Joomla contains an access control flaw that allows unauthenticated attackers to read, modify, or delete sensitive data and disrupt site operations. No user interaction is required. The vulnerability affects versions 1.0.0 through 2.20.1. Site administrators should update immediately when a patched version becomes available.

What an attacker can do

03Attacker Capabilities

Read, modify, or delete site data and disrupt operations without authentication.

Potential impact on your site

04Site Impact

Attackers can access and alter your site's data and functionality without logging in.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

July 29, 2026 CVE published
August 1, 2026 Record updated

Related vulnerabilities

08Related CVE