What is CVE-2026-53635?

CVE-2026-53635 is a high-severity vulnerability in Openedx Openedx-Platform, classified under Missing Authorization. CVSS score: 7.6/10. Published 2026-09-02.

How severe is CVE-2026-53635?

High severity. CVSS v3 base score is 7.6 out of 10.

Auth bypass in Openedx Openedx-Platform

CVE-2026-53635

Open edX Platform enables the authoring and delivery of online learning at any scale. Prior to commit 59bb6d6, the view function set_course_mode_price() at lms/djangoapps/instructor/views/instructor_dashboard.py:430 is decorated only with @login_required and performs no course-level permission check. Any authenticated user — including a learner account with zero course roles — can issue a single POST request to overwrite the honor mode price and currency of any course on the platform. The companion frontend modal was removed in a prior cleanup, but the URL route and view remain live, making this an unguarded orphan endpoint. This issue has been patched via commit 59bb6d6.

Vulnerability class: Broken Access Control

Published 2026-09-02 · last modified 2026-09-09.

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L.

EPSS exploit prediction

EPSS: 0.004 (32.4th percentile), scored 2026-10-18.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002

Affected products

Openedx Openedx-Platform — versions < 59bb6d669e4fdc24d96afb809e12119372d9e257

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

Frequently asked questions

What is CVE-2026-53635?: CVE-2026-53635 is a high-severity vulnerability in Openedx Openedx-Platform, classified under Missing Authorization. CVSS score: 7.6/10. Published 2026-09-02.
How severe is CVE-2026-53635?: High severity. CVSS v3 base score is 7.6 out of 10.