Is CVE-2026-35404 actively exploited?

No active exploitation of CVE-2026-35404 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-35404 be exploited remotely?

Yes. CVE-2026-35404 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-35404?

CVE-2026-35404 has a CVSS score of 4.7 (MEDIUM).

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MEDIUM

CVE-2026-35404

CWE-601Published: April 6, 2026· Updated: Apr 7, 2026

4.7

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.0th

Official 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.

NVD Source

Technical Analysis

CVE-2026-35404 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.