{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-40440 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-40440 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-40440 is a medium-severity cross-site scripting vulnerability in Microsoft Dynamics 365 Business Central 2020 Release Wave 2 – Update 17.10, published on 15 Sep 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-40440 and fix it if it is affected.\n\nWhat it is: CVE-2021-40440 is a medium-severity cross-site scripting vulnerability in Microsoft Dynamics 365 Business Central 2020 Release Wave 2 – Update 17.10, published on 15 Sep 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-40440 in the wild and no public exploit code.\n\nAffected product: Microsoft Dynamics 365 Business Central 2020 Release Wave 2 – Update 17.10. 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-2021-40440/ (Markdown: https://insights.sbomify.com/CVE-2021-40440/index.md)","id":"CVE-2021-40440","markdown":"https://insights.sbomify.com/CVE-2021-40440/index.md","name":"CVE-2021-40440","record":{"aliases":["GHSA-7hv9-m3f4-mcw5"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Microsoft Dynamics 365","requires_auth":"low_privilege","summary":"Attackers can inject malicious scripts into Microsoft Dynamics 365 Business Central, potentially compromising user sessions and data.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"dynamics_365_business_central","vendor":"microsoft"}],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Microsoft Dynamics Business Central Cross-site Scripting 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 Dynamics Business Central Cross-site Scripting Vulnerability","id":"CVE-2021-40440","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Windows Media Center Elevation of Privilege Vulnerability","id":"CVE-2021-40441"},"packages":[],"prev":{"headline":"Billion Laughs","id":"CVE-2021-40439"},"products":["Microsoft Dynamics 365 Business Central 2020 Release Wave 2 – Update 17.10","Microsoft Dynamics 365 Business Central 2021 Release Wave 1 - Update 18.5"],"published":"2021-09-15","related":[{"cvss_score":8.8,"headline":"Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability","id":"CVE-2024-38225","kev_date_added":null,"published":"2024-09-10"},{"cvss_score":8.8,"headline":"Microsoft Dynamics 365 Business Central Remote Code Execution Vulnerability","id":"CVE-2024-35249","kev_date_added":null,"published":"2024-06-11"},{"cvss_score":8.5,"headline":"Microsoft Dynamics NAV and Microsoft Dynamics 365 Business Central (On Premises) Remote Code Execution Vulnerability","id":"CVE-2022-41127","kev_date_added":null,"published":"2022-12-13"},{"cvss_score":8.1,"headline":"Dynamics 365 Business Central Elevation of Privilege Vulnerability","id":"CVE-2024-43460","kev_date_added":null,"published":"2024-09-17"},{"cvss_score":8,"headline":"Microsoft Dynamics Business Central/NAV Information Disclosure Vulnerability","id":"CVE-2024-21380","kev_date_added":null,"published":"2024-02-13"},{"cvss_score":8,"headline":"Microsoft Dynamics 365 Business Central Remote Code Execution Vulnerability","id":"CVE-2021-34474","kev_date_added":null,"published":"2021-07-14"},{"cvss_score":8,"headline":"Code injection in Dynamics 365 Business Central 2019 Release Wave 2 (On-Premise)","id":"CVE-2020-1022","kev_date_added":null,"published":"2020-04-15"}],"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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-08-10","vendors":["Microsoft"]},"summary":"Attackers can inject malicious scripts into Microsoft Dynamics 365 Business Central, potentially compromising user sessions and data.","url":"https://insights.sbomify.com/CVE-2021-40440/"}