Description (CNA)
Open edX Platform enables the authoring and delivery of online learning at any scale. From Redwood until Ulmo and Verawood.1, the add_additional_attributes_to_notifications function in openedx/core/djangoapps/notifications/email/utils.py assigns notification content without sanitizing discussion-title values produced by get_notification_content in openedx/core/djangoapps/notifications/base_notification.py. An enrolled student can place CSS-capable markup in the post_title value supplied by lms/djangoapps/discussion/rest_api/discussions_notifications.py. Digest and batched-email rendering then passes that value through openedx/core/djangoapps/notifications/templates/notifications/digest_content.html as safe HTML, allowing email-open tracking and content spoofing or phishing when another learner opens a CSS-rendering client. The immediate-email path is not affected because it strips title markup and renders a separately sanitized body. This issue is fixed in Ulmo and Verawood.1.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| openedx / openedx-platform | affected >= release/redwood.1, < release/ulmo.4 |
CWE
CWE-79
References
- https://github.com/openedx/openedx-platform/security/advisories/GHSA-rv5w-f4r5-h77g
- https://github.com/openedx/openedx-platform/commit/2af03d21b4142e53e375c7f3699b313e92ec5121
- https://github.com/openedx/openedx-platform/commit/52f2b3bb3e6fac2601c29e8f926c81498d20bb0b
- https://github.com/openedx/openedx-platform/commit/5eae6e51a8797cd3b87cc132f5de73d52561c4d7
- https://github.com/openedx/openedx-platform/releases/tag/release/ulmo.4
- https://github.com/openedx/openedx-platform/releases/tag/release/verawood.1
ADP enrichment
No English description supplied.
No references supplied.