{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-43876 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-43876 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-43876 is a high-severity vulnerability in Microsoft Sharepoint Enterprise Server, published on 29 Dec 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-43876 and fix it if it is affected.\n\nWhat it is: CVE-2021-43876 is a high-severity vulnerability in Microsoft Sharepoint Enterprise Server, published on 29 Dec 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-43876 in the wild and no public exploit code.\n\nAffected product: Microsoft Sharepoint Enterprise 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-2021-43876/ (Markdown: https://insights.sbomify.com/CVE-2021-43876/index.md)","id":"CVE-2021-43876","markdown":"https://insights.sbomify.com/CVE-2021-43876/index.md","name":"CVE-2021-43876","record":{"aliases":["GHSA-5vx7-rqhr-2p9x"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"SharePoint Server","requires_auth":"low_privilege","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_enterprise_server","vendor":"microsoft"},{"product":"sharepoint_server","vendor":"microsoft"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"},"cwes":[],"description":"Microsoft SharePoint Elevation of Privilege Vulnerability","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Microsoft SharePoint Elevation of Privilege Vulnerability","id":"CVE-2021-43876","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"microsoft:sharepoint_enterprise_server","products":["microsoft:sharepoint_enterprise_server","microsoft:sharepoint_server"],"type":"privilege_escalation","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability","id":"CVE-2021-43877"},"packages":[],"prev":{"headline":"Microsoft Office Graphics Remote Code Execution Vulnerability","id":"CVE-2021-43875"},"products":["Microsoft SharePoint Enterprise Server 2013 Service Pack 1","Microsoft SharePoint Enterprise Server 2016","Microsoft SharePoint Server 2019"],"published":"2021-12-29","related":[{"cvss_score":9.8,"headline":"Microsoft SharePoint Remote Code Execution","id":"CVE-2019-0604","kev_date_added":"2021-11-03","published":"2019-03-06"},{"cvss_score":7.2,"headline":"Microsoft SharePoint Server Code Injection","id":"CVE-2023-24955","kev_date_added":"2024-03-26","published":"2023-05-09"},{"cvss_score":6.5,"headline":"Microsoft SharePoint Improper Authentication","id":"CVE-2025-49706","kev_date_added":"2025-07-22","published":"2025-07-08"},{"cvss_score":9.9,"headline":"Microsoft SharePoint Remote Code Execution Vulnerability","id":"CVE-2020-1210","kev_date_added":null,"published":"2020-09-11"},{"cvss_score":9.9,"headline":"Microsoft SharePoint Remote Code Execution Vulnerability","id":"CVE-2020-1595","kev_date_added":null,"published":"2020-09-11"},{"cvss_score":8.8,"headline":"Microsoft SharePoint Server Remote Code Execution Vulnerability","id":"CVE-2025-47163","kev_date_added":null,"published":"2025-06-10"},{"cvss_score":8.8,"headline":"Microsoft SharePoint Server Remote Code Execution Vulnerability","id":"CVE-2025-47166","kev_date_added":null,"published":"2025-06-10"}],"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":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","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-2021-43876/"}