CVE-2023-0879 Cross-site Scripting (XSS) - Stored in btcpayserver/btcpayserver

Medium 6.3 Published 17 Feb 2023 Updated 18 Mar 2025

Stored XSS in BTCPay Server allows attackers to inject malicious scripts, potentially leading to code execution or account takeover.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2023-0879?

CVE-2023-0879 is a medium-severity cross-site scripting vulnerability in btcpayserver/btcpayserver, published on 17 Feb 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Cross-site Scripting (XSS) - Stored in GitHub repository btcpayserver/btcpayserver prior to 1.7.12.

Weakness: CWE-79

Which versions are affected by CVE-2023-0879?

It affects 1 product.

Products include Btcpayserver Btcpay Server.

How do I fix CVE-2023-0879?

No fix has been published for CVE-2023-0879 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-0879 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-0879 exists.

Sources

Also known as GHSA-wh8v-v378-r87r.