CVE-2021-3830 — MEDIUM (5.4)

Q: What is CVE-2021-3830?

CVE-2021-3830 is a vulnerability with a CVSS score of 5.4 (MEDIUM). btcpayserver is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Q: How severe is CVE-2021-3830?

CVE-2021-3830 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-3830?

Check the references section above for vendor advisories and patch information. Affected products include: Btcpayserver Btcpay Server.

Vulnerability Description

btcpayserver is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Btcpayserver	Btcpay Server	<= 1.2.3

Related Weaknesses (CWE)

CWE-79

References

https://github.com/btcpayserver/btcpayserver/commit/fc4e47cec608cc3dba24b19d0145PatchThird Party Advisory
https://huntr.dev/bounties/0fcdee5f-1f07-47ce-b650-ea8b4a7d35d8ExploitIssue TrackingPatch
https://github.com/btcpayserver/btcpayserver/commit/fc4e47cec608cc3dba24b19d0145PatchThird Party Advisory
https://huntr.dev/bounties/0fcdee5f-1f07-47ce-b650-ea8b4a7d35d8ExploitIssue TrackingPatch

FAQ

What is CVE-2021-3830?

CVE-2021-3830 is a vulnerability with a CVSS score of 5.4 (MEDIUM). btcpayserver is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

How severe is CVE-2021-3830?

CVE-2021-3830 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-3830?

Check the references section above for vendor advisories and patch information. Affected products include: Btcpayserver Btcpay Server.