Cross-site Scripting (XSS) Affecting github.com/greenpau/caddy-security package, versions *


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-6249860
  • published16 Feb 2024
  • disclosed18 Sept 2023
  • creditMaciej Domanski, Travis Peters, David Pokora

Introduced: 18 Sep 2023

CVE-2024-21496  (opens in a new tab)
CWE-79  (opens in a new tab)
First added by Snyk

How to fix?

There is no fixed version for github.com/greenpau/caddy-security.

Overview

github.com/greenpau/caddy-security is a Security App and Plugin for Caddy v2.

Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via the Referer header, due to improper input sanitization. Although the Referer header is sanitized by escaping some characters that can allow XSS (e.g., [&], [<], [>], ["], [']), it does not account for the attack based on the JavaScript URL scheme (e.g., javascript:alert(document.domain)// payload). Exploiting this vulnerability may not be trivial, but it could lead to the execution of malicious scripts in the context of the target user’s browser, compromising user sessions.

CVSS Scores

version 3.1