{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-43847 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-43847 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-43847 is a medium-severity missing authorization vulnerability in humhub, published on 20 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-2021-43847 and fix it if it is affected.\n\nWhat it is: CVE-2021-43847 is a medium-severity missing authorization vulnerability in humhub, published on 20 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-2021-43847 in the wild and no public exploit code.\n\nAffected product: humhub. 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-2021-43847/ (Markdown: https://insights.sbomify.com/CVE-2021-43847/index.md)","id":"CVE-2021-43847","markdown":"https://insights.sbomify.com/CVE-2021-43847/index.md","name":"CVE-2021-43847","record":{"aliases":["GHSA-f5hc-5wfr-7v74"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["privilege_escalation","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"HumHub social network","requires_auth":"low_privilege","summary":"Registered users can bypass authorization to join private Spaces, gaining unauthorized access to restricted content.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"humhub","vendor":"humhub"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"},{"id":"CWE-285","name":"Improper Authorization"}],"description":"HumHub is an open-source social network kit written in PHP. Prior to HumHub version 1.10.3 or 1.9.3, it could be possible for registered users to become unauthorized members of private Spaces. Versions 1.10.3 and 1.9.3 contain a patch for this issue.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Authorization Bypass in Space Invite in HumHub","id":"CVE-2021-43847","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2021"},"n_packages":0,"n_references":5,"next":{"headline":"Unititialized memory access in h2o","id":"CVE-2021-43848"},"packages":[],"prev":{"headline":"CSRF forgery protection bypass for Spree::OrdersController#populate","id":"CVE-2021-43846"},"products":["humhub"],"published":"2021-12-20","related":[{"cvss_score":7.5,"headline":"SQL injection in n/a","id":"CVE-2014-9528","kev_date_added":null,"published":"2015-01-06"},{"cvss_score":7.1,"headline":"HumHub is vulnerable to XSS through its Meta Search component","id":"CVE-2025-64442","kev_date_added":null,"published":"2025-11-07"},{"cvss_score":6.9,"headline":"HumHub: XSS in Button component","id":"CVE-2026-29048","kev_date_added":null,"published":"2026-03-06"},{"cvss_score":6.9,"headline":"User enumeration in HubHub","id":"CVE-2024-52043","kev_date_added":null,"published":"2024-11-06"},{"cvss_score":6.5,"headline":"Improper access control in humhub","id":"CVE-2022-24865","kev_date_added":null,"published":"2022-04-20"},{"cvss_score":6.1,"headline":"Cross-site scripting in n/a","id":"CVE-2019-11564","kev_date_added":null,"published":"2019-05-08"}],"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":"2024-08-04","vendors":["humhub"]},"summary":"Registered users can bypass authorization to join private Spaces, gaining unauthorized access to restricted content.","url":"https://insights.sbomify.com/CVE-2021-43847/"}