{"answers":{"affected":"2 open source packages ship an affected version, including nodebb. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-43786 in the wild and no public exploit code.","fix":"Upgrade nodebb to 1.18.5 or later.","what":"CVE-2021-43786 is a critical authentication bypass vulnerability in NodeBB, published on 29 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-43786 and fix it if it is affected.\n\nWhat it is: CVE-2021-43786 is a critical authentication bypass vulnerability in NodeBB, published on 29 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-43786 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- nodebb (npm): affected from 1.15.0; fixed in 1.18.5\n- nodebb (npm): affected from 1.15.0; fixed in 1.18.5\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-2021-43786/ (Markdown: https://insights.sbomify.com/CVE-2021-43786/index.md)","id":"CVE-2021-43786","markdown":"https://insights.sbomify.com/CVE-2021-43786/index.md","name":"CVE-2021-43786","record":{"aliases":["GHSA-hf2m-j98r-4fqw"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"NodeBB forum software","requires_auth":"none","summary":"Attackers can bypass API token verification to gain unauthorized master token access in NodeBB forum software.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"nodebb","vendor":"nodebb"}],"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","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"Nodebb is an open source Node.js based forum software. In affected versions incorrect logic present in the token verification step unintentionally allowed master token access to the API. The vulnerability has been patch as of v1.18.5. Users are advised to upgrade as soon as possible.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"API token verification can be bypassed","id":"CVE-2021-43786","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"auth_bypass","year":"2021"},"n_packages":2,"n_references":4,"next":{"headline":"XSS via prototype pollution","id":"CVE-2021-43787"},"packages":[{"ecosystem":"npm","fixed":["1.18.5"],"introduced":["1.15.0"],"last_affected":[],"package":"nodebb","purl":null,"source":"GHSA-hf2m-j98r-4fqw"},{"ecosystem":"npm","fixed":["1.18.5"],"introduced":["1.15.0"],"last_affected":[],"package":"nodebb","purl":"pkg:npm/nodebb","source":"GHSA-hf2m-j98r-4fqw"}],"prev":{"headline":"Cross Site Scripting Vulnerability in @joeattardi/emoji-button","id":"CVE-2021-43785"},"products":["NodeBB"],"published":"2021-11-29","related":[{"cvss_score":10,"headline":"NodeBB vulnerable to path traversal and code execution via prototype vulnerability","id":"CVE-2023-26045","kev_date_added":null,"published":"2023-07-24"},{"cvss_score":9.9,"headline":"Account takeover in NodeBB","id":"CVE-2020-15149","kev_date_added":null,"published":"2020-08-19"},{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2023-43187","kev_date_added":null,"published":"2023-09-26"},{"cvss_score":9.4,"headline":"Account takeover via prototype vulnerability","id":"CVE-2022-46164","kev_date_added":null,"published":"2022-12-05"},{"cvss_score":9,"headline":"Account takeover via cryptographically weak PRNG in NodeBB Forum","id":"CVE-2022-36045","kev_date_added":null,"published":"2022-08-31"},{"cvss_score":9,"headline":"XSS via prototype pollution","id":"CVE-2021-43787","kev_date_added":null,"published":"2021-11-29"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":["NodeBB"]},"summary":"Attackers can bypass API token verification to gain unauthorized master token access in NodeBB forum software.","url":"https://insights.sbomify.com/CVE-2021-43786/"}