medium6.1
CVE-2024-21496
Cross-site Scripting in github.com/greenpau/caddy-security
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/greenpau/caddy-security | <= 1.1.23 | none recorded |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Authcrunch | Caddy-Security | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/
- https://github.com/greenpau/caddy-security/issues/267
- https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-6249860
- https://github.com/advisories/GHSA-ff72-ff42-c3gw
- https://nvd.nist.gov/vuln/detail/CVE-2024-21496
- https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy