{"answers":{"affected":"It affects 1 product.","exploited":"Yes. Attackers have exploited CVE-2023-29357 in the wild since at least 10 Jan 2024, including in ransomware campaigns.","fix":"No fix has been published for CVE-2023-29357 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 31 Jan 2024.","what":"CVE-2023-29357 is a critical vulnerability in Microsoft Sharepoint Server, published on 13 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-29357 and fix it if it is affected.\n\nWhat it is: CVE-2023-29357 is a critical vulnerability in Microsoft Sharepoint Server, published on 13 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2023-29357 in the wild since at least 10 Jan 2024, including in ransomware campaigns.\n\nAffected product: Microsoft Sharepoint Server. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-29357/ (Markdown: https://insights.sbomify.com/CVE-2023-29357/index.md)","id":"CVE-2023-29357","markdown":"https://insights.sbomify.com/CVE-2023-29357/index.md","name":"CVE-2023-29357","record":{"aliases":["GHSA-m2h6-v37r-r43p"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"SharePoint Server","requires_auth":"none","summary":"An attacker can elevate privileges in Microsoft SharePoint Server, potentially gaining unauthorized access to sensitive data or system functions.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"sharepoint_server","vendor":"microsoft"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","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","version":"3.1"},"cwes":[{"id":"CWE-303","name":"Incorrect Implementation of Authentication Algorithm"}],"description":"Microsoft SharePoint Server Elevation of Privilege Vulnerability","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2023-05-01","github_poc":9,"max_poc_stars":236,"metasploit":1,"nuclei":1,"refs":[{"date":"2023-09-26T16:18:41Z","kind":"github_poc","ref":"https://github.com/Chocapikk/CVE-2023-29357","stars":236,"title":"Microsoft SharePoint Server Elevation of Privilege Vulnerability"},{"date":"2023-09-30T23:17:04Z","kind":"github_poc","ref":"https://github.com/LuemmelSec/CVE-2023-29357","stars":55,"title":null},{"date":"2023-12-22T08:42:00Z","kind":"github_poc","ref":"https://github.com/Guillaume-Risch/cve-2023-29357-Sharepoint","stars":4,"title":null},{"date":"2023-10-10T13:41:21Z","kind":"github_poc","ref":"https://github.com/KeyStrOke95/CVE-2023-29357-ExE","stars":3,"title":"Recreation of the SharePoint PoC for CVE-2023-29357 in C# from LuemmelSec"},{"date":"2024-01-01T21:08:22Z","kind":"github_poc","ref":"https://github.com/Jev1337/CVE-2023-29357-Check","stars":1,"title":"A Python script that verifies whether a target is vulnerable to CVE-2023-29357 or not"},{"date":"2026-07-29T08:02:05Z","kind":"github_poc","ref":"https://github.com/Zedocun/Sharepoint-cve-2023-29357-incident-response","stars":1,"title":"End-to-end SOC incident analysis and threat hunting playbook targeting Microsoft SharePoint privilege escalation (CVE-2023-29357) using SIEM logs, firewall data, and threat intel. LetsDefend lab scenario (SOC227)."},{"date":"2023-05-01","kind":"metasploit","ref":"exploit/windows/http/sharepoint_dynamic_proxy_generator_auth_bypass_rce","stars":null,"title":"Sharepoint Dynamic Proxy Generator Unauth RCE"},{"date":"2024-09-12T17:45:25Z","kind":"github_poc","ref":"https://github.com/AhmedMansour93/Event-ID-189-Rule-Name-SOC227-CVE-2023-29357","stars":0,"title":"Event ID 189 Rule Name SOC227  Microsoft SharePoint Server Elevation of Privilege Possible CVE-2023-29357 ..  Exploitation"}],"tier":"exploited"},"has_fix":null,"headline":"Microsoft SharePoint Server Privilege Escalation","id":"CVE-2023-29357","indexable":true,"kev":{"dateAdded":"2024-01-10","dueDate":"2024-01-31","knownRansomwareCampaignUse":"Known","product":"SharePoint Server","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","vendorProject":"Microsoft","vulnerabilityName":"Microsoft SharePoint Server Privilege Escalation Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"microsoft:sharepoint_server","products":["microsoft:sharepoint_server"],"type":"privilege_escalation","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Windows GDI Elevation of Privilege Vulnerability","id":"CVE-2023-29358"},"packages":[],"prev":{"headline":"Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability","id":"CVE-2023-29356"},"products":["Microsoft SharePoint Server 2019"],"published":"2023-06-13","related":[{"cvss_score":9.8,"headline":"Microsoft SharePoint Deserialization of Untrusted Data Vulnerability","id":"CVE-2026-50522","kev_date_added":"2026-07-22","published":"2026-07-14"},{"cvss_score":9.8,"headline":"Microsoft SharePoint Deserialization of Untrusted Data","id":"CVE-2026-58644","kev_date_added":"2026-07-16","published":"2026-07-14"},{"cvss_score":9.8,"headline":"Microsoft SharePoint Deserialization of Untrusted Data","id":"CVE-2026-20963","kev_date_added":"2026-03-18","published":"2026-01-13"},{"cvss_score":9.8,"headline":"Microsoft SharePoint Deserialization of Untrusted Data","id":"CVE-2025-53770","kev_date_added":"2025-07-20","published":"2025-07-20"},{"cvss_score":9.1,"headline":"Microsoft SharePoint Weak Authentication","id":"CVE-2026-55040","kev_date_added":"2026-08-18","published":"2026-07-14"},{"cvss_score":8.8,"headline":"Microsoft SharePoint Code Injection","id":"CVE-2026-65660","kev_date_added":"2026-09-25","published":"2026-08-11"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"BSD-3-Clause","name":"Metasploit"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-10-21","vendors":["Microsoft"]},"summary":"An attacker can elevate privileges in Microsoft SharePoint Server, potentially gaining unauthorized access to sensitive data or system functions.","url":"https://insights.sbomify.com/CVE-2023-29357/"}