{"uuid": "adc7bedb-be6c-4538-8fa0-e08ca53647f1", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-55040", "type": "seen", "source": "https://t.me/VulnerabilityNews/43976", "content": "Attackers Exploit SharePoint Authentication Bypass After Public PoC Release\n\nThreat actors have begun to exploit a newly disclosed Microsoft SharePoint vulnerability following the release of a proof-of-concept (PoC) code.\n\nThe vulnerability in question is CVE-2026-55040 (CVSS score: 9.1), which refers to a critical security feature bypass that stems from weak authentication. It was patched by Microsoft as part of its July 2026 Patch Tuesday updates.\n\n\"The authentication\nhttps://thehackernews.com/2026/08/attackers-exploit-sharepoint.html", "creation_timestamp": "2026-09-18T12:00:07.512111Z"}