# Withdrawn Advisory: HTML injections in BTCPayServer

Advisory record · `GHSA-33gv-rvgq-gpxp` · Withdrawn

- **Identifiers:** `GHSA-33gv-rvgq-gpxp` · `CVE-2023-0493`
- **State:** Withdrawn
- **Severity:** CVSS 5.3 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-74](https://cwe.mitre.org/data/definitions/74.html) · [CWE-76](https://cwe.mitre.org/data/definitions/76.html)
- **Tags:** [Other injection](https://agentprime.io/advisories/tag/injection.md) · [CWE-76](https://agentprime.io/advisories/tag/cwe-76.md)
- **Published:** 27 Jan 2023
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

**Withdrawn.** The GitHub Advisory Database withdrew this advisory on 10 Oct 2023. The record stays here, marked withdrawn.

Published by the GitHub Advisory Database at 27 Jan 2023, 00:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `BTCPayServer.Client` (NuGet): affected `<1.7.5`; fixed in `1.7.5`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 5.3 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`, from CNA (@huntrdev)

- **CISA KEV:** Not listed.
- **EPSS:** 0.079, the 94th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:21 UTC: First seen by agentprime
- 31 Oct 2026, 15:21 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-33gv-rvgq-gpxp)

## Sources

- [GitHub Advisory Database: GHSA-33gv-rvgq-gpxp](https://github.com/advisories/GHSA-33gv-rvgq-gpxp)
- [OSV: GHSA-33gv-rvgq-gpxp](https://osv.dev/vulnerability/GHSA-33gv-rvgq-gpxp)
- <https://nvd.nist.gov/vuln/detail/CVE-2023-0493>
- <https://github.com/btcpayserver/btcpayserver/pull/4545/commits/02070d65836cd24627929b3403efbae8de56039a>
- <https://github.com/btcpayserver/btcpayserver/commit/02070d65836cd24627929b3403efbae8de56039a>
- <https://huntr.dev/bounties/3a73b45c-6f3e-4536-a327-cdfdbc59896f>
- <http://packetstormsecurity.com/files/171732/BTCPay-Server-1.7.4-HTML-Injection.html>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-33gv-rvgq-gpxp>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-33gv-rvgq-gpxp/>. Everything for agents: <https://agentprime.io/llms.txt>.