CVE-2026-107903 - Vulnerability Details - OpenCVE

Description

Joomla Extension - balbooa.com - Stored XSS in reviews via inconsistent sanitization in Gridbox < 2.20.5.0

Published: 2026-11-05

Score: 8.6 High

EPSS: n/a

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

balbooa.com

Gridbox extension for Joomla

unaffected

Version	Status	Constraints
`1.0.0-2.20.4.2`	affected	—

No data.

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://www.balbooa.com/gridbox

History

Thu, 05 Nov 2026 18:15:00 +0000

Type	Values Removed	Values Added
Description		Joomla Extension - balbooa.com - Stored XSS in reviews via inconsistent sanitization in Gridbox < 2.20.5.0
Title		Joomla Extension - balbooa.com - Stored XSS in reviews via inconsistent sanitization in Gridbox < 2.20.5.0
Weaknesses		CWE-79
References		https://www.balbooa.com/gridbox
Metrics		cvssV4_0 `{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N'}`

Subscriptions

No data.

MITRE

Status: PUBLISHED

Assigner: Joomla

Published: 2026-11-05T17:56:53.843Z

Updated: 2026-11-05T19:22:30.130Z

Reserved: 2026-10-09T04:41:07.272Z

Link: CVE-2026-107903

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-11-05T18:17:00.547

Modified: 2026-11-05T18:17:00.547

Link: CVE-2026-107903

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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