<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Header-Spoofing — PoC Archive</title><link>https://poc.intelseclab.com/tags/header-spoofing/</link><description>Latest proof-of-concept entries.</description><generator>Hugo</generator><language>en-us</language><lastBuildDate>Sat, 11 Jul 2026 00:00:00 +0000</lastBuildDate><atom:link href="https://poc.intelseclab.com/tags/header-spoofing/index.xml" rel="self" type="application/rss+xml"/><item><title>Gitea Docker Image Reverse-Proxy Authentication Bypass — "One Header, Any User" (CVE-2026-20896)</title><link>https://poc.intelseclab.com/pocs/web/2026-07-11_cve-2026-20896-gitea-docker-reverse-proxy-auth-bypass/</link><pubDate>Sat, 11 Jul 2026 00:00:00 +0000</pubDate><guid>https://poc.intelseclab.com/pocs/web/2026-07-11_cve-2026-20896-gitea-docker-reverse-proxy-auth-bypass/</guid><description>Critical severity (CVSS 9.8) — web · CVE-2026-20896 (GHSA-f75j-4cw6-rmx4). Status: Weaponized (public PoC + detector script, actively exploited in the wild per Sysdig). Affects: Gitea — official Docker images (gitea/gitea), both root and rootless variants. Tags: gitea, docker, authentication-bypass, reverse-proxy, header-spoofing, unauthenticated, remote, cwe-290, actively-exploited.</description><category>web</category><category>Critical</category><category>gitea</category><category>docker</category><category>authentication-bypass</category><category>reverse-proxy</category><category>header-spoofing</category><category>unauthenticated</category><category>remote</category><category>cwe-290</category><category>actively-exploited</category></item><item><title>Fortinet FortiClient EMS Pre-Auth Bypass — "FortiBleed" (CVE-2026-35616)</title><link>https://poc.intelseclab.com/pocs/network/2026-07-03_cve-2026-35616-forticlient-ems-auth-bypass/</link><pubDate>Fri, 03 Jul 2026 00:00:00 +0000</pubDate><guid>https://poc.intelseclab.com/pocs/network/2026-07-03_cve-2026-35616-forticlient-ems-auth-bypass/</guid><description>Critical severity (CVSS 9.1) — network · CVE-2026-35616. Status: Weaponized. Affects: Fortinet FortiClient Endpoint Management Server (EMS). Tags: authentication-bypass, header-spoofing, Fortinet, FortiClient-EMS, FortiBleed, credential-theft, CISA-KEV, active-exploitation, ransomware.</description><category>network</category><category>Critical</category><category>authentication-bypass</category><category>header-spoofing</category><category>Fortinet</category><category>FortiClient-EMS</category><category>FortiBleed</category><category>credential-theft</category><category>CISA-KEV</category><category>active-exploitation</category><category>ransomware</category></item></channel></rss>