{"id":"CVE-2023-29357","aliases":["EUVD-2023-32930","GHSA-m2h6-v37r-r43p"],"status":"published","title":"Microsoft SharePoint Server Elevation of Privilege Vulnerability","description":"Microsoft SharePoint Server Elevation of Privilege Vulnerability","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.99984,"percentile":0.99983,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-303"],"published":"2023-06-13T23:26:02Z","modified":"2026-06-17T05:49:52Z","kev":{"date_added":"2024-01-10","due_date":"2024-01-31","required_action":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Known"},"exploitation":[{"source":"euvd","since":"2024-01-10"},{"source":"kev","since":"2024-01-10"}],"exploits":[{"source":"metasploit","id":"exploit/windows/http/sharepoint_dynamic_proxy_generator_auth_bypass_rce","title":"Sharepoint Dynamic Proxy Generator Unauth RCE","type":"exploit","platform":"Windows","date":"2023-05-01","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/http/sharepoint_dynamic_proxy_generator_auth_bypass_rce"},{"source":"pocgithub","id":"Chocapikk/CVE-2023-29357","title":"Chocapikk/CVE-2023-29357","date":"2023-09-26","url":"https://github.com/Chocapikk/CVE-2023-29357"},{"source":"pocgithub","id":"LuemmelSec/CVE-2023-29357","title":"LuemmelSec/CVE-2023-29357","date":"2023-09-30","url":"https://github.com/LuemmelSec/CVE-2023-29357"},{"source":"pocgithub","id":"KeyStrOke95/CVE-2023-29357-ExE","title":"KeyStrOke95/CVE-2023-29357-ExE","date":"2023-10-10","url":"https://github.com/KeyStrOke95/CVE-2023-29357-ExE"},{"source":"pocgithub","id":"Guillaume-Risch/cve-2023-29357-Sharepoint","title":"Guillaume-Risch/cve-2023-29357-Sharepoint","date":"2023-12-22","url":"https://github.com/Guillaume-Risch/cve-2023-29357-Sharepoint"},{"source":"pocgithub","id":"Jev1337/CVE-2023-29357-Check","title":"Jev1337/CVE-2023-29357-Check","date":"2024-01-01","url":"https://github.com/Jev1337/CVE-2023-29357-Check"},{"source":"pocgithub","id":"AhmedMansour93/Event-ID-189-Rule-Name-SOC227-CVE-2023-29357","title":"AhmedMansour93/Event-ID-189-Rule-Name-SOC227-CVE-2023-29357","date":"2024-09-12","url":"https://github.com/AhmedMansour93/Event-ID-189-Rule-Name-SOC227-CVE-2023-29357"},{"source":"pocgithub","id":"DeividasTerechovas/SOC227-Microsoft-SharePoint-Server-Elevation-of-Privilege-Possible-CVE-2023-29357-Exploitation","title":"DeividasTerechovas/SOC227-Microsoft-SharePoint-Server-Elevation-of-Privilege-Possible-CVE-2023-29357-Exploitation","date":"2025-04-01","url":"https://github.com/DeividasTerechovas/SOC227-Microsoft-SharePoint-Server-Elevation-of-Privilege-Possible-CVE-2023-29357-Exploitation"},{"source":"pocgithub","id":"DonVorrin/CVE-2023-29357","title":"DonVorrin/CVE-2023-29357","date":"2026-04-13","url":"https://github.com/DonVorrin/CVE-2023-29357"},{"source":"pocgithub","id":"Zedocun/Sharepoint-cve-2023-29357-incident-response","title":"Zedocun/Sharepoint-cve-2023-29357-incident-response","date":"2026-07-29","url":"https://github.com/Zedocun/Sharepoint-cve-2023-29357-incident-response"},{"source":"nuclei","id":"CVE-2023-29357","title":"Microsoft SharePoint - Authentication Bypass","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-29357.yaml"}],"products":[{"vendor":"microsoft","product":"microsoft sharepoint server 2019"},{"vendor":"microsoft","product":"sharepoint server"},{"vendor":"microsoft","product":"sharepoint_server"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-29357","tags":["vendor-advisory","x_transferred","Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-29357","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-29357"},{"url":"https://github.com/advisories/GHSA-m2h6-v37r-r43p"}],"sources":{"cve":[{"id":"CVE-2023-29357","title":"Microsoft SharePoint Server Elevation of Privilege Vulnerability","description":"Microsoft SharePoint Server Elevation of Privilege Vulnerability","status":"published","published":"2023-06-13T23:26:02.86Z","modified":"2025-10-21T23:05:46.015Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-303"],"updated_at":"2026-11-02T14:35:28.218693Z"}],"euvd":[{"id":"EUVD-2023-32930","description":"Microsoft SharePoint Server Elevation of Privilege Vulnerability","status":"published","published":"2023-06-13T23:26:02Z","modified":"2025-10-21T23:05:46Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"critical"}],"exploited_since":"2024-01-10","updated_at":"2026-11-02T20:31:27.312976Z"}],"ghsa":[{"id":"GHSA-m2h6-v37r-r43p","title":"Microsoft SharePoint Server Elevation of Privilege Vulnerability","description":"Microsoft SharePoint Server Elevation of Privilege Vulnerability","status":"published","published":"2023-06-14T00:30:39Z","modified":"2025-10-22T00:33:51Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-303"],"updated_at":"2026-11-02T15:04:08.734574Z"}],"kev":[{"id":"CVE-2023-29357","title":"Microsoft SharePoint Server Privilege Escalation Vulnerability","description":"Microsoft SharePoint Server contains an unspecified vulnerability that allows an unauthenticated attacker, who has gained access to spoofed JWT authentication tokens, to use them for executing a network attack. This attack bypasses authentication, enabling the attacker to gain administrator privileges.","cwes":["CWE-303"],"kev":{"date_added":"2024-01-10","due_date":"2024-01-31","required_action":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Known"},"updated_at":"2026-11-02T17:00:16.234141Z"}],"nvd":[{"id":"CVE-2023-29357","description":"Microsoft SharePoint Server Elevation of Privilege Vulnerability","status":"published","published":"2023-06-14T00:15:09.903Z","modified":"2026-06-17T05:49:52.747Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-303"],"updated_at":"2026-11-02T14:08:06.335469Z"}]}}