User Impersonation

Overview Affected versions of this package are vulnerable to User Impersonation due to the reliance on client-supplied IP address headers such as X-Forwarded-For, X-Real-IP, and True-Client-IP. An attacker can circumvent per-IP rate limiting by supplying arbitrary values in these headers, causing...

CVE-2026-46356

Fleet (open-source device management) before v4.80.1 is vulnerable: an IP extraction flaw lets unauthenticated attackers bypass per-IP rate limits by rotating headers like True-Client-IP, X-Real-IP, or X-Forwarded-For, enabling brute-force or credential stuffing on exposed instances. Root cause: ...

CVE-2026-27739

CVE-2026-27739 affects Angular SSR, with an SSRF vulnerability in the request handling pipeline. Versions prior to 21.2.0-rc.1, 21.1.5, 20.3.17, and 19.2.21 allow unvalidated Host and X-Forwarded-* headers to influence base-origin URL construction, enabling arbitrary internal request steering via...

CVE-2026-1320

The Secure Copy Content Protection and Content Locking plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'X-Forwarded-For' HTTP header in all versions up to, and including, 4.9.8 due to insufficient input sanitization and output escaping. This makes it possible for...

CVE-2025-66204

WBCE CMS 1.6.4 contains a brute-force protection bypass where an attacker can indefinitely reset the password-guess counter by manipulating the X-Forwarded-For header on every request. The application fully trusts X-Forwarded-For without validation or restriction, effectively allowing unlimited p...