{"vulnerability": "CVE-2021-28321", "sightings": [{"uuid": "1b84e4dc-f55e-42bd-93e9-0ebd8c6f0c3e", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-28321", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/3220", "content": "#Threat_Research\n1. RCE via unsafe inline Kramdown options when rendering certain Wiki pages\nhttps://hackerone.com/reports/1125425\n2. PoC code about the Microsoft Diaghub case sensitivity EoP vulnerability (CVE-2021-28321, CVE-2021-28322, CVE-2021-28313)\nhttps://github.com/irsl/microsoft-diaghub-case-sensitivity-eop-cve\n3. The peculiar case of HTML Injection\nhttps://infosecwriteups.com/the-peculiar-case-of-html-injection-d14db8440e3", "creation_timestamp": "2024-08-18T14:42:05.000000Z"}, {"uuid": "5dda0677-2444-4610-9164-fd29223d0d4a", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-28321", "type": "published-proof-of-concept", "source": "https://t.me/cissp/3040", "content": "", "creation_timestamp": "2026-09-11T08:00:07.421021Z"}, {"uuid": "138d96df-1c1f-4f39-acfe-c17094a6d9ec", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-28321", "type": "seen", "source": "https://t.me/cissp/3040", "content": "", "creation_timestamp": "2026-09-01T17:00:52.657851Z"}]}