VDB-384188 · CVE-2026-65888 · EUVD-2026-50356

Balbooa Gridbox Extension up to 2.20.1 socialLogin improper authentication

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in Balbooa Gridbox Extension up to 2.20.1. This affects the function socialLogin. Such manipulation leads to improper authentication. This vulnerability is listed as CVE-2026-65888. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Balbooa Gridbox Extension up to 2.20.1 and classified as critical. Affected by this issue is the function socialLogin. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Joomla Extension - balbooa.com - Account takeover vulnerability in Gridbox < 2.20.2 - The socialLogin method allows actors to login as any given user on the target site.

The advisory is shared for download at balbooa.com. This vulnerability is handled as CVE-2026-65888 since 07/23/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

Upgrading to version 2.20.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-50356). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Balbooa

Name

Gridbox Extension

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Gridbox Extension 2.20.2

Timelineinfo

07/23/2026 CVE reserved
07/29/2026 +6 days Advisory disclosed
07/29/2026 +0 days VulDB entry created
07/31/2026 +2 days VulDB entry last update

Sourcesinfo

Advisory: balbooa.com
Status: Confirmed

CVE: CVE-2026-65888 (🔒)
GCVE (CVE): GCVE-0-2026-65888
GCVE (VulDB): GCVE-100-384188
EUVD: 🔒

Entryinfo

Created: 07/29/2026 17:22
Updated: 07/31/2026 19:31
Changes: 07/29/2026 17:22 (54), 07/31/2026 19:31 (1)
Complete: 🔍
Cache ID: 216::103