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Vulnerability record · CVE-2021-29251 · published 1 April 2021

CVE-2021-29251: Btcpayserver btcpay server vulnerability

Btcpayserver · Btcpay Server

BTCPay Server before 1.0.7.1 mishandles the policy setting in which users can register (in Server Settings > Policies). This affects Docker use cases in which a mail server is configured.

6.5 CVSS 3.1 Medium EPSS 0.79% · top 45.7%
6.5CVSS 3.1 base score, v2 3.5
0.79%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

BTCPay Server before 1.0.7.1 mishandles the policy setting in which users can register (in Server Settings > Policies). This affects Docker use cases in which a mail server is configured.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://blog.btcpayserver.org/vulnerability-disclosure-v1-0-7-0/ Release NotesVendor Advisory
https://github.com/btcpayserver/btcpayserver/releases/tag/v1.0.7.1 Release NotesThird Party Advisory
https://blog.btcpayserver.org/vulnerability-disclosure-v1-0-7-0/ Release NotesVendor Advisory
https://github.com/btcpayserver/btcpayserver/releases/tag/v1.0.7.1 Release NotesThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2023-0493Btcpayserver btcpay server injection vulnerabilityImproper Neutralization of Equivalent Special Elements in GitHub repository btcpayserver/btcpayserver prior to 1.7.5.EPSS 7.9%7.5CVE-2022-32984Btcpayserver btcpay server information exposure vulnerabilityBTCPay Server 1.3.0 through 1.5.3 allows a remote attacker to obtain sensitive information when a public Point of Sale app is exposed. The sensitive …EPSS 1.0%7.5CVE-2021-29249Btcpayserver btcpay server vulnerabilityBTCPay Server before 1.0.6.0, when the payment button is used, has a privacy vulnerability.EPSS 1.2%6.7CVE-2021-29246Btcpayserver btcpay server path traversal vulnerabilityBTCPay Server through 1.0.7.0 suffers from directory traversal, which allows an attacker with admin privileges to achieve code execution. The attacke…EPSS 1.5%6.1CVE-2021-3646Btcpayserver btcpay server cross-site scripting vulnerabilitybtcpayserver is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')EPSS 0.77%5.4CVE-2023-1149Btcpayserver btcpay server vulnerabilityImproper Neutralization of Equivalent Special Elements in GitHub repository btcpayserver/btcpayserver prior to 1.8.0.EPSS 0.55%5.4CVE-2023-0879Btcpayserver btcpay server cross-site scripting vulnerabilityCross-site Scripting (XSS) - Stored in GitHub repository btcpayserver/btcpayserver prior to 1.7.12.EPSS 0.48%5.4CVE-2021-3830Btcpayserver btcpay server cross-site scripting vulnerabilitybtcpayserver is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')EPSS 0.56%

Source: NIST National Vulnerability Database (record CVE-2021-29251), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.