What is CVE-2026-35404?

CVE-2026-35404 is a medium-severity vulnerability in Openedx, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.7/10. Published 2026-04-06.

How severe is CVE-2026-35404?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Open Redirect in Openedx

CVE-2026-35404

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-ex…

Vulnerability class: Open Redirect

EPSS: 0.000 (3.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N.

Affected products

Openedx
Openedx Openedx-platform — versions < 76462f1e5fa9b37d2621ad7ad19514b403908970

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-35404?: CVE-2026-35404 is a medium-severity vulnerability in Openedx, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.7/10. Published 2026-04-06.
How severe is CVE-2026-35404?: Medium severity. CVSS v3 base score is 4.7 out of 10.