PT-2021-22021 · Unknown · Btcpay Server

Published 2021-09-26 · Updated 2021-10-01 · CVE-2021-3830

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: btcpayserver (affected versions not specified)

Description: The issue is related to Improper Neutralization of Input During Web Page Generation, also known as Cross-site Scripting. This means that the software does not properly neutralize user input, allowing an attacker to inject malicious code into web pages. No information is provided about the estimated number of potentially affected devices or real-world incidents where this issue was exploited.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-3830

Affected Products

Btcpay Server

References · 6

• 🔥 https://huntr.dev/bounties/0fcdee5f-1f07-47ce-b650-ea8b4a7d35d8 · Exploit
• https://github.com/btcpayserver/btcpayserver/commit/fc4e47cec608cc3dba24b19d0145ac69320b975e · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-3830 · Security Note
• https://osv.dev/vulnerability/CVE-2021-3830 · Vendor Advisory
• https://t.me/cvenotify/21467 · Telegram Post
• https://t.me/cibsecurity/29426 · Telegram Post