CVE-2026-35404

The record

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 packages

Related vulnerabilities

• CVE-2026-87945 URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Drupal SAML SSO… CWE-601
• CVE-2026-87937 URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Drupal Central… CWE-601
• CVE-2026-112034 A weakness has been identified in aircheng-org iWebShop-5 up to 5.16. CWE-601
• CVE-2026-101907 Axios is a promise-based HTTP client for the browser and Node.js. CWE-601
• CVE-2026-8323 URL redirection to untrusted site ('open redirect') vulnerability in Armiya Information… CWE-601
• CVE-2026-78377 URL redirection to untrusted site ('open redirect') vulnerability in Yordam Informatics… CWE-601
• CVE-2026-81741 The Groundhogg — CRM, Newsletters, and Marketing Automation WordPress plugin before 4.7.2… CWE-601
• CVE-2026-84389 A url redirection to untrusted site ('open redirect') vulnerability in Fortinet FortiSIEM… CWE-601