CVE-2023-0493: Improper Neutralization of Equivalent Special Elements in GitHub repository btcpayserver/btcpayserver prior to

Q: How do I fix CVE-2023-0493?

btcpay server: upgrade to 1.7.5. Exact commands for each OS are on this page.

Q: Is CVE-2023-0493 being exploited?

CVE-2023-0493 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-0493 affect?

CVE-2023-0493 affects btcpay server. Severity is medium (CVSS 5.3). Improper Neutralization of Equivalent Special Elements in GitHub repository btcpayserver/btcpayserver prior to 1.7.5.

Q: How urgent is CVE-2023-0493?

Priority 52/100. EPSS top 5%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

This week

MEDIUM 5.3REMOTEUPGRADE

CVE-2023-0493 is a medium-severity flaw (CVSS 5.3) affecting btcpay server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

EPSS top 5%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	7.9% (top 5%)
CISA exploited list	No
Weakness	CWE-76, CWE-74
Published	2023-01-26
Last modified	2026-06-17

Publisher (CNA): huntr.dev · Vendor: btcpayserver

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-01-26 23:15 UTCPublished CVE record published
2026-06-17 05:25 UTCUpdated Record last modified

btcpayserver btcpay server UPGRADE

Affected: < 1.7.5

Fixed in: 1.7.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy btcpay-server || rpm -q btcpay-server || btcpay-server --version

2. UPGRADE to 1.7.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade btcpay-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade btcpay-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: BTCPay Server v1.7.4 - HTML Injection

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-0493?

btcpay server: upgrade to 1.7.5. Exact commands for each OS are on this page.

Is CVE-2023-0493 being exploited?

CVE-2023-0493 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-0493 affect?

CVE-2023-0493 affects btcpay server. Severity is medium (CVSS 5.3). Improper Neutralization of Equivalent Special Elements in GitHub repository btcpayserver/btcpayserver prior to 1.7.5.

How urgent is CVE-2023-0493?

Priority 52/100. EPSS top 5%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

GitHub vulnerabilities

Related CVEs

CVE-2023-0879 MEDIUM 6.3 UPGRADE Cross-site Scripting (XSS) - Stored in GitHub repository btcpayserver/btcpayserver prior to 1.7.12.

References

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