CVE-2026-85271
- Source
- https://cve.org/CVERecord?id=CVE-2026-85271
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-85271.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-85271
- Aliases
-
- GHSA-rv5w-f4r5-h77g
- Published
- 2026-09-18T20:38:40Z
- Modified
- 2026-10-28T02:30:21Z
- Severity
-
- 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
- Summary
- Open edX Platform: Stored CSS Injection in Email Digest Notifications via Unsanitized Thread Title (incomplete patch of CVE-2026-42857)
- Details
-
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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-79" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85271.json" }- References
-
- https://github.com/openedx/openedx-platform/releases/tag/release/ulmo.4
- https://github.com/openedx/openedx-platform/releases/tag/release/verawood.1
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85271.json
- https://github.com/openedx/openedx-platform/security/advisories/GHSA-rv5w-f4r5-h77g
- https://nvd.nist.gov/vuln/detail/CVE-2026-85271
- https://github.com/openedx/openedx-platform/commit/2af03d21b4142e53e375c7f3699b313e92ec5121
- https://github.com/openedx/openedx-platform/commit/52f2b3bb3e6fac2601c29e8f926c81498d20bb0b
- https://github.com/openedx/openedx-platform/commit/5eae6e51a8797cd3b87cc132f5de73d52561c4d7
Affected packages
Git / github.com/openedx/openedx-platform
Affected ranges
- Type
- GIT
- Repo
- https://github.com/openedx/openedx-platform
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": ">= release/redwood.1, < release/ulmo.4" }, { "last_affected": ">= release/redwood.1, < release/ulmo.4" } ], "source": "AFFECTED_FIELD", "strategy": "StandaloneSingleVersion" }, { "range": [ { "fixed": "2af03d21b4142e53e375c7f3699b313e92ec5121" } ], "source": "REFERENCES_COMMIT" }, { "range": [ { "fixed": "52f2b3bb3e6fac2601c29e8f926c81498d20bb0b" } ], "source": "REFERENCES_COMMIT" }, { "range": [ { "fixed": "5eae6e51a8797cd3b87cc132f5de73d52561c4d7" } ], "source": "REFERENCES_COMMIT" } ] }