{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "76462f1e5fa9b37d2621ad7ad19514b403908970"
            }
          ],
          "repo": "https://github.com/openedx/openedx-platform",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-2843-x998-f8r2"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-601"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35404.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "76462f1e5fa9b37d2621ad7ad19514b403908970"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "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.",
  "id": "CVE-2026-35404",
  "modified": "2026-08-12T03:51:12.772855574Z",
  "published": "2026-04-06T21:22:29.562Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35404.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/openedx/openedx-platform/security/advisories/GHSA-2843-x998-f8r2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35404"
    },
    {
      "type": "FIX",
      "url": "https://github.com/openedx/openedx-platform/commit/76462f1e5fa9b37d2621ad7ad19514b403908970"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Open edX Platform has an Open Redirect in Survey Views via Unvalidated redirect_url Parameter"
}