{"vulnerability": "cve-2026-100639", "sightings": [{"uuid": "661d1d01-aecf-4a5d-9f6f-ce5059710dfd", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-100639", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mwhyricd3a2k", "content": "CVE-2026-100639 - siyuan\nVersions of SiYuan up to 3.8.3 do not properly clean certain data when a user pastes specially crafted Markdown. This can let an attacker inject code that runs with the same rights\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#siyuan #siyuannote #CVE #infosec", "creation_timestamp": "2026-09-27T04:50:06.365337Z"}, {"uuid": "6aa61819-e1d5-4756-a32c-c3ebe69fa2a0", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-100639", "type": "seen", "source": "https://bsky.app/profile/thehackerwire.bsky.social/post/3mwkcd2pwrr2c", "content": "\ud83d\udfe0 CVE-2026-100639 - High (8.8)\n\nSiYuan v3.8.3 fails to HTML-escape the data-subtype attribute when generating gutter-button marku...\n\nhttps://www.thehackerwire.com/vulnerability/CVE-2026-100639/\n\n#infosec #cybersecurity #CVE #vulnerability #security #patchstack", "creation_timestamp": "2026-09-28T02:46:20.154688Z"}]}