Open edX Platform: Stored CSS Injection in Email Notifications via Incomplete HTML Sanitization
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| openedx | openedx-platform | affected |
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No data.
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| Openedx | Openedx-platform |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.184% probability within 30 days)
| Type | Values Removed | Values Added |
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| First Time appeared |
Openedx openedx
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| CPEs | cpe:2.3:a:openedx:openedx:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Openedx openedx
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| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| First Time appeared |
Openedx
Openedx openedx-platform |
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| Vendors & Products |
Openedx
Openedx openedx-platform |
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| Description | 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. | |
| Title | Open edX Platform: Stored CSS Injection in Email Notifications via Incomplete HTML Sanitization | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV3_1
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