{"id":"CVE-2026-35404","state":"PUBLISHED","title":"Open edX Platform has an Open Redirect in Survey Views via Unvalidated redirect_url Parameter","description":"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.","publishedAt":"2026-04-06T21:22:29.562Z","updatedAt":"2026-05-11T17:29:17.591Z","severity":{"score":4.7,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["openedx openedx-platform"],"affected":[{"vendor":"openedx","product":"openedx-platform","versions":[{"version":"< 76462f1e5fa9b37d2621ad7ad19514b403908970","status":"affected"}]}],"references":["https://github.com/openedx/openedx-platform/security/advisories/GHSA-2843-x998-f8r2","https://github.com/openedx/openedx-platform/commit/76462f1e5fa9b37d2621ad7ad19514b403908970"],"weaknesses":["CWE-601"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/35xxx/CVE-2026-35404.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-35404","state":"PUBLISHED","datePublished":"2026-04-06T21:22:29.562Z","dateUpdated":"2026-05-11T17:29:17.591Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-02T17:03:42.074Z"},"containers":{"cna":{"title":"Open edX Platform has an Open Redirect in Survey Views via Unvalidated redirect_url Parameter","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."}],"affected":[{"vendor":"openedx","product":"openedx-platform","versions":[{"version":"< 76462f1e5fa9b37d2621ad7ad19514b403908970","status":"affected"}]}],"references":[{"url":"https://github.com/openedx/openedx-platform/security/advisories/GHSA-2843-x998-f8r2","name":"https://github.com/openedx/openedx-platform/security/advisories/GHSA-2843-x998-f8r2","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/openedx/openedx-platform/commit/76462f1e5fa9b37d2621ad7ad19514b403908970","name":"https://github.com/openedx/openedx-platform/commit/76462f1e5fa9b37d2621ad7ad19514b403908970","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.7,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-601","lang":"en","description":"CWE-601: URL Redirection to Untrusted Site ('Open Redirect')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-11T17:29:17.591Z"},"source":{"advisory":"GHSA-2843-x998-f8r2","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-07T16:17:36.155139Z","id":"CVE-2026-35404","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-07T16:17:47.603Z"}}]}}}