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

Q: What does an attacker need to exploit this issue?

The vector indicates network-reachable exploitation with low attack complexity, no attacker privileges required, and user interaction required. The issue is associated with stored content submitted through reviews.

Q: Which installations are in scope?

Gridbox versions earlier than 2.20.5.0 are affected according to the available information. Installations using Gridbox reviews are the relevant exposure area.

Published Nov 5, 2026

Updated

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

Event History

Nov 5, 2026

CVE Published

via MITRE·05:56 PM

Data Sourced

via MITRE·05:56 PM

DescriptionWeakness

Data Sourced

via NVD·06:17 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What does an attacker need to exploit this issue?

The vector indicates network-reachable exploitation with low attack complexity, no attacker privileges required, and user interaction required. The issue is associated with stored content submitted through reviews.

Which installations are in scope?

Gridbox versions earlier than 2.20.5.0 are affected according to the available information. Installations using Gridbox reviews are the relevant exposure area.

Company

Resources

Contact

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