Open edX Platform enables the authoring and delivery of online learning at any scale. he 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.
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Fixes

Solution

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Workaround

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History

Tue, 07 Apr 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Openedx
Openedx openedx-platform
Vendors & Products Openedx
Openedx openedx-platform

Tue, 07 Apr 2026 00:00:00 +0000

Type Values Removed Values Added
Description Open edX Platform enables the authoring and delivery of online learning at any scale. he 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.
Title Open edX Platform has an Open Redirect in Survey Views via Unvalidated redirect_url Parameter
Weaknesses CWE-601
References
Metrics cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-06T21:22:29.562Z

Reserved: 2026-04-02T17:03:42.074Z

Link: CVE-2026-35404

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-06T22:16:21.360

Modified: 2026-04-06T22:16:21.360

Link: CVE-2026-35404

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-07T09:36:55Z

Weaknesses