CVE-2023-0493
Improper Neutralization of Equivalent Special Elements in btcpayserver/btcpayserver
Improper Neutralization of Equivalent Special Elements in GitHub repository btcpayserver/btcpayserver prior to 1.7.5.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Improper Neutralization of Equivalent Special Elements in btcpayserver/btcpayserver
Improper Neutralization of Equivalent Special Elements in GitHub repository btcpayserver/btcpayserver prior to 1.7.5.
- Record
CVE-2023-0493- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-76
- Updated
- 2026-11-02
EUVDEUVD-2023-0312
Improper Neutralization of Equivalent Special Elements in GitHub repository btcpayserver/btcpayserver prior to 1.7.5.
- Record
EUVD-2023-0312- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-33gv-rvgq-gpxp
Withdrawn Advisory: HTML injections in BTCPayServer
Withdrawn Advisory
This advisory has been withdrawn because all of the files affected by this vulnerability lie in the BTCPayServer folder, which is not in the NuGet ecosystem. The BTCPayServer folder, corresponding to the BTCPayServer NuGet entry, does not contain any files that were changed to fix the vulnerability.
Original Description
Improper Neutralization of Equivalent Special Elements in GitHub repository btcpayserver/btcpayserver prior to 1.7.5.
- Record
GHSA-33gv-rvgq-gpxp- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-74, CWE-76
- Updated
- 2026-11-02
NVD
Improper Neutralization of Equivalent Special Elements in GitHub repository btcpayserver/btcpayserver prior to 1.7.5.
- Record
CVE-2023-0493- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-76, CWE-74
- Updated
- 2026-11-02
OSV
Improper Neutralization of Equivalent Special Elements in btcpayserver/btcpayserver
Improper Neutralization of Equivalent Special Elements in GitHub repository btcpayserver/btcpayserver prior to 1.7.5.
- Record
CVE-2023-0493- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-76
- Updated
- 2026-11-02
OSVGHSA-33gv-rvgq-gpxp
Withdrawn Advisory: HTML injections in BTCPayServer
Withdrawn Advisory
This advisory has been withdrawn because all of the files affected by this vulnerability lie in the BTCPayServer folder, which is not in the NuGet ecosystem. The BTCPayServer folder, corresponding to the BTCPayServer NuGet entry, does not contain any files that were changed to fix the vulnerability.
Original Description
Improper Neutralization of Equivalent Special Elements in GitHub repository btcpayserver/btcpayserver prior to 1.7.5.
- Record
GHSA-33gv-rvgq-gpxp- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-74, CWE-76
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | BTCPay Server v1.7.4 - HTML Injection | 2023-04-05 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| first indexed | CVE List, EUVD, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-0493 is a medium vulnerability (CVSS 5.3) in Btcpayserver Btcpayserver/btcpayserver, published January 26, 2023. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 8.12%, the 94th percentile. No source names a fixed version.
References
huntr.dev/bounties/3a73b45c-6f3e-4536-a327-cdfdbc59896f
github.com/btcpayserver/btcpayserver/pull/4545/commits/02070d65836cd24627929b3403efbae8de56039a
packetstormsecurity.com/files/171732/BTCPay-Server-1.7.4-HTML-Injection.html
nvd.nist.gov/vuln/detail/CVE-2023-0493