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Respond faster and outpace attackers. Taking command of your attack surface starts here.
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Attack Surface Management
Reveal & protect coverage gaps
Exposure Management
Identify & remediate at-risk data
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Pinpoint & eliminate risk
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Manage governance, risk & compliance
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Investigate with AI-driven detections
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Discover & defend sensitive data
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Scan & simplify dev workflows
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Rapid7 MDR vs. Competitors
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BACK TO VEDB

CVE-2026-107903: balbooa.com Gridbox extension for Joomla: Joomla Extension - balbooa.com - Stored XSS in reviews via inconsistent sanitization in Gridbox < 2.20.5.0

Name: CVE-2026-107903: balbooa.com Gridbox extension for Joomla: Joomla Extension - balbooa.com - Stored XSS in reviews via inconsistent sanitization in Gridbox < 2.20.5.0
Creator: Rapid7
Published: 2026-11-05T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-107903, CWE-79, CVSS 8.6

REQUEST DEMO

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

CVSS Details

CVSS 4.0 Base Score: 8.6 (HIGH)
CVSS 4.0 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)

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CVE details

CVSS v4 Score

8.6 High

CVSS v3 ScoreN/A

EPSS ScoreN/A

EPSS PercentileN/A

In CISA KEV CatalogueFalse

Published

Nov 5, 2026

References

NVD ↗
MITRE ↗

MDR Buyer's Guide

Global Threat Landscape Report

MDR Buyer's Guide

Global Threat Landscape Report

CVE-2026-107903: balbooa.com Gridbox extension for Joomla: Joomla Extension - balbooa.com - Stored XSS in reviews via inconsistent sanitization in Gridbox < 2.20.5.0

CVSS Details

Prioritize with Active Threat Intelligence