description: All versions of the package github.com/greenpau/caddy-security 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.
problem types: Cross-site Scripting (XSS)
affected:
{
product: github.com/greenpau/caddy-security
versions:
version: 0, lessThan: *, status: affected, versionType: semver
vendor: n/a
}
metrics:
cvssV3_1: [
version: 3.1
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: CHANGED
confidentialityImpact: LOW
integrityImpact: LOW
availabilityImpact: NONE
baseScore: 6.1
baseSeverity: MEDIUM
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P
]