CVE-2026-35404

{"id": "CVE-2026-35404", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-35404", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-07T16:17:36.155139Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.7, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "openedx", "product": "openedx-platform", "versions": [{"status": "affected", "version": "< 76462f1e5fa9b37d2621ad7ad19514b403908970"}]}]}], "published": "2026-04-06T22:16:21.360", "references": [{"url": "https://github.com/openedx/openedx-platform/commit/76462f1e5fa9b37d2621ad7ad19514b403908970", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/openedx/openedx-platform/security/advisories/GHSA-2843-x998-f8r2", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-601"}]}], "descriptions": [{"lang": "en", "value": "Open edX Platform enables the authoring and delivery of online learning at any scale. The view_survey endpoint accepts a redirect_url GET parameter that is passed directly to HttpResponseRedirect() without any URL validation. When a non-existent survey name is provided, the server issues an immediate HTTP 302 redirect to the attacker-controlled URL. Additionally, the same unvalidated URL is embedded in a hidden form field and returned in a JSON response after form submission, where client-side JavaScript performs location.href = url. This enables phishing and credential theft attacks against authenticated Open edX users. This vulnerability is fixed with commit 76462f1e5fa9b37d2621ad7ad19514b403908970."}, {"lang": "es", "value": "La Plataforma Open edX permite la creaci\u00f3n y entrega de aprendizaje en l\u00ednea a cualquier escala. El endpoint view_survey acepta un par\u00e1metro GET redirect_url que se pasa directamente a HttpResponseRedirect() sin ninguna validaci\u00f3n de URL. Cuando se proporciona un nombre de encuesta inexistente, el servidor emite una redirecci\u00f3n HTTP 302 inmediata a la URL controlada por el atacante. Adem\u00e1s, la misma URL no validada se incrusta en un campo de formulario oculto y se devuelve en una respuesta JSON despu\u00e9s del env\u00edo del formulario, donde el JavaScript del lado del cliente realiza location.href = url. Esto permite ataques de phishing y robo de credenciales contra usuarios autenticados de Open edX. Esta vulnerabilidad se corrige con el commit 76462f1e5fa9b37d2621ad7ad19514b403908970."}], "lastModified": "2026-07-24T21:10:00.143", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openedx:openedx:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "06A17A40-548D-40D0-BD7F-CC30B7EA25DA", "versionEndIncluding": "2026-04-02"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}