GHSA-FF72-FF42-C3GW

Vulnerability from github – Published: 2024-02-17 06:30 – Updated: 2024-11-06 23:31
VLAI?
Summary
Cross-site Scripting in github.com/greenpau/caddy-security
Details

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.

Severity ?
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/greenpau/caddy-security"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1.1.23"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-21496"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-02-20T23:46:51Z",
    "nvd_published_at": "2024-02-17T05:15:09Z",
    "severity": "MODERATE"
  },
  "details": "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., [\u0026], [\u003c], [\u003e], [\"], [\u0027]), 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\u2019s browser, compromising user sessions.",
  "id": "GHSA-ff72-ff42-c3gw",
  "modified": "2024-11-06T23:31:23Z",
  "published": "2024-02-17T06:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21496"
    },
    {
      "type": "WEB",
      "url": "https://github.com/greenpau/caddy-security/issues/267"
    },
    {
      "type": "WEB",
      "url": "https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-6249860"
    },
    {
      "type": "PACKAGE",
      "url": "github.com/greenpau/caddy-security"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Cross-site Scripting in github.com/greenpau/caddy-security"
}


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