{"vulnerability": "cve-2026-57858", "sightings": [{"uuid": "2be9750c-4455-43f2-88e8-887f192a8355", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-57858", "type": "published-proof-of-concept", "source": "https://t.me/GithubRedTeam/97085", "content": "\ud83d\udea8 GitHub \u76d1\u63a7\u6d88\u606f\u63d0\u9192\n\n\ud83d\udea8 \u53d1\u73b0\u5173\u952e\u8bcd\uff1a #CVE-2026 #Exploit\n\n\ud83d\udce6 \u9879\u76ee\u540d\u79f0\uff1a CVE-2026-57858\n\ud83d\udc64 \u9879\u76ee\u4f5c\u8005\uff1a zylideum\n\ud83d\udee0 \u5f00\u53d1\u8bed\u8a00\uff1a Unknown\n\u2b50 Star\u6570\u91cf\uff1a 0  |  \ud83c\udf74 Fork\u6570\u91cf\uff1a 0\n\ud83d\udcc5 \u66f4\u65b0\u65f6\u95f4\uff1a 2026-08-07 21:09:19\n\n\ud83d\udcdd \u9879\u76ee\u63cf\u8ff0\uff1a\nWormable exploit for CVE-2026-57858\n\n\ud83d\udd17 \u70b9\u51fb\u8bbf\u95ee\u9879\u76ee\u5730\u5740", "creation_timestamp": "2026-08-07T23:09:24.132242Z"}, {"uuid": "0d1f6f36-0e01-475e-adf3-06208acb8705", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-57858", "type": "published-proof-of-concept", "source": "https://t.me/GithubRedTeam/97085", "content": "\ud83d\udea8 GitHub \u76d1\u63a7\u6d88\u606f\u63d0\u9192\n\n\ud83d\udea8 \u53d1\u73b0\u5173\u952e\u8bcd\uff1a #CVE-2026 #Exploit\n\n\ud83d\udce6 \u9879\u76ee\u540d\u79f0\uff1a CVE-2026-57858\n\ud83d\udc64 \u9879\u76ee\u4f5c\u8005\uff1a zylideum\n\ud83d\udee0 \u5f00\u53d1\u8bed\u8a00\uff1a Unknown\n\u2b50 Star\u6570\u91cf\uff1a 0  |  \ud83c\udf74 Fork\u6570\u91cf\uff1a 0\n\ud83d\udcc5 \u66f4\u65b0\u65f6\u95f4\uff1a 2026-08-07 21:09:19\n\n\ud83d\udcdd \u9879\u76ee\u63cf\u8ff0\uff1a\nWormable exploit for CVE-2026-57858\n\n\ud83d\udd17 \u70b9\u51fb\u8bbf\u95ee\u9879\u76ee\u5730\u5740", "creation_timestamp": "2026-08-08T00:02:15.212732Z"}, {"uuid": "b2b4cb7d-b530-4d9c-b8d5-4aec1e7a1051", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-57858", "type": "published-proof-of-concept", "source": "Telegram/wFizrrbAMDFnDVCm6fOMsyo-M7GcVmnQt0S9VRUliYzF6W4", "content": "", "creation_timestamp": "2026-08-08T23:04:23.178838Z"}, {"uuid": "5e8c0e01-5fe9-40b2-a174-7a79b304d8d5", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-57858", "type": "published-proof-of-concept", "source": "Telegram/wFizrrbAMDFnDVCm6fOMsyo-M7GcVmnQt0S9VRUliYzF6W4", "content": "", "creation_timestamp": "2026-08-09T00:18:54.474872Z"}, {"uuid": "3275421a-bc34-44df-b910-ef38ac31900f", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-57858", "type": "published-proof-of-concept", "source": "Telegram/SJgsYpMApmH3kxQGJCGNQpcz-GAta1cAcJiXzXwEzvRKjsI", "content": "", "creation_timestamp": "2026-08-09T00:25:03.632351Z"}, {"uuid": "662c7cbe-0bf1-4175-956f-673c267a19cb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-57858", "type": "seen", "source": "https://infosec.exchange/users/offseq/statuses/117082778962101708", "content": "CVE-2026-57858: CRITICAL stored XSS in Cal.com Self-Hosted (v2.1.1 \u2013 6.2.0). Exploited via BookingPageTagManager by authenticated event owners; affects all booking page visitors. Patch status unknown. Restrict privileges. https://radar.offseq.com/threat/cve-2026-57858-improper-neutralization-of-input-during-web-page-generation-cross-site-scripting-in-953e719dabfd2c11 #OffSeq #XSS #SecOps", "creation_timestamp": "2026-08-12T13:30:27.838166Z"}, {"uuid": "b73b680c-d205-4205-aefe-6dd43d5d3366", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-57858", "type": "seen", "source": "https://bsky.app/profile/offseq.bsky.social/post/3msvafnovck25", "content": "Cal.com Self-Hosted (Cal.diy) v2.1.1 \u2013 6.2.0 faces CRITICAL stored XSS (CVE-2026-57858) via BookingPageTagManager. Restrict event owner access & watch for patch news. \ud83d\udee1\ufe0f https://radar.offseq.com/threat/cve-2026-57858-improper-neutralization-of-input-during-web-page-generation-cross-site-scripting...", "creation_timestamp": "2026-08-12T13:30:29.844684Z"}, {"uuid": "d980ed4a-2722-4172-a5a9-8799b102b00c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-57858", "type": "seen", "source": "https://bsky.app/profile/thehackerwire.bsky.social/post/3msvc3s6u422b", "content": "\ud83d\udfe0 CVE-2026-57858 - High (8.9)\n\nCal.com Cal.diy versions 2.1.1 through 6.2.0 contain a stored cross-site scripting vulnerability ...\n\nhttps://www.thehackerwire.com/vulnerability/CVE-2026-57858/\n\n#infosec #cybersecurity #CVE #vulnerability #security #patchstack", "creation_timestamp": "2026-08-12T14:00:46.571719Z"}]}