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CVE-2026-97702

Open edX: Support "manage_course_team" REST API omits the `require_support_permission` gate its sibling support views enforce

Open edX Platform enables the authoring and delivery of online learning at any scale. From the Ulmo release until release/ulmo.4 and release/verawood.1, the GET /api/support/v1/manage_course_team/ endpoint in CourseTeamManageAPIView requires only IsAuthenticated and omits the global support-role authorization check intended for this help-desk surface. Any authenticated learner can supply an email, username, or user_id for an arbitrary target and use the 200 and 404 response discrepancy to distinguish an active account from an absent or inactive account. A caller with a course-level or organization-level instructor role can additionally obtain the target user's staff or instructor assignments within the caller's course or organization scope. Anonymous callers remain blocked, and the separately authorized PUT behavior is outside this vulnerability. This issue is fixed in release/ulmo.4 and release/verawood.1.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Openedx
Products
Openedx-platform
CVE-2026-42858

Open edX Platform: Server-Side Request Forgery (SSRF) in SAML Provider Data Sync Endpoint

Open edX Platform enables the authoring and delivery of online learning at any scale. The sync_provider_data endpoint in SAMLProviderDataViewSet allows authenticated Enterprise Admin users to supply an arbitrary URL via the metadata_url POST parameter. This URL is passed directly to requests.get() in fetch_metadata_xml() without any URL validation, IP filtering, or scheme enforcement. An attacker with Enterprise Admin privileges can force the server to make HTTP requests to internal network services, cloud metadata endpoints (e.g., AWS 169.254.169.254), or other attacker-controlled destinations. This vulnerability is fixed by commit 6fda1f120ff5a590d120ae1180185525f399c6d0 and 70a56246dd9c9df57c596e64bdd8a11b1d9da054.

CVSS 3.1 · 8.5 High EPSS < 1% KEV · Not listed
Vendors
Openedx
Products
Openedx Openedx-platform
CVE-2026-85272

Open edX Platform: Path traversal via prefix-bypass in safe_extractall Path Validation

Open edX Platform enables the authoring and delivery of online learning at any scale. From Aspen.1 until Ulmo and Verawood.1, openedx/core/lib/extract_archive.py uses _is_bad_path to validate safe_extractall targets by comparing resolved path strings with startswith instead of comparing path components. A course author or staff user with course import permission can submit a crafted .tar.gz archive through the import_olx flow initiated by cms.djangoapps.contentstore.views.import_export.import_handler. An archive member can therefore escape into a sibling course staging directory whose name shares the attacker's base64 directory prefix, causing limited cross-tenant file corruption. Zip archives are not practically affected because ZipFile.extractall strips parent traversal segments, and the advisory does not establish arbitrary filesystem writes, file reads, or direct code execution. This issue is fixed in Ulmo and Verawood.1.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Openedx
Products
Openedx-platform
CVE-2026-55421

Open edX Platform: SSRF in Studio Video Download Endpoint

Open edX Platform enables the authoring and delivery of online learning at any scale. Prior to commit 00b7c3c, the endpoint accepts user-supplied files[].url, performs a server-side fetch using "requests.get(url, allow_redirects=True)". The fetched bytes are then returned inside a ZIP response. This enables SSRF with response exfiltration. Redirect-following is enabled, and there is no timeout in the vulnerable fetch path. This issue has been patched via commit 00b7c3c.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Openedx
Products
Openedx-platform
CVE-2026-42857

Open edX Platform: Stored CSS Injection in Email Notifications via Incomplete HTML Sanitization

Open edX Platform enables the authoring and delivery of online learning at any scale. The HTML sanitizer clean_thread_html_body() used for discussion notification emails fails to remove <style> tags from user-generated discussion post content. This content is rendered with Django's |safe template filter in email notification templates, allowing any enrolled student to inject arbitrary CSS into email notifications sent to other users. This enables email tracking (IP address disclosure), content spoofing, and phishing attacks. This vulnerability is fixed with commit cddc25cd791bb78f76833896e4778f668861df12.

CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed
Vendors
Openedx
Products
Openedx Openedx-platform
CVE-2026-35404

Open edX Platform has an Open Redirect in Survey Views via Unvalidated redirect_url Parameter

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.

CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed
Vendors
Openedx
Products
Openedx Openedx-platform
CVE-2026-34736

Open edX Platform: Account Activation Bypass via activation_key Exposure in REST API

Open edX Platform enables the authoring and delivery of online learning at any scale. From the maple release to before the ulmo release, an unauthenticated attacker can fully bypass the email verification process by combining two issues: the OAuth2 password grant issuing tokens to inactive users (documented behavior) and the activation_key being exposed in the REST API response at /api/user/v1/accounts/. This issue has been patched in the ulmo release.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Openedx
Products
Openedx-platform
CVE-2024-43782

openedx-translations's Atlas translations for Open edX missing validation

This openedx-translations repository contains translation files from Open edX repositories to be kept in sync with Transifex. Before moving to pulling translations from the openedx-translations repository via openedx-atlas, translations in the edx-platform repository were validated using edx-i18n-tools. This validation included protection against malformed translations and translations-based script injections. Prior to this patch, the validation implemented in the openedx-translations repository did not include the same protections. The maintainer inspected the translations in the edx-platform directory of both the main and open-release/redwood.master branches of the openedx-translations repository and found no evidence of exploited translation strings.

CVSS 3.1 · 7.7 High EPSS < 1% KEV · Not listed
Vendors
Openedx
Products
Openedx Openedx-translations