{"answers":{"affected":"2 open source packages ship an affected version, including startserver. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-23430 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-23430 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-23430 is a high-severity path traversal vulnerability in startserver, published on 24 Aug 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-2021-23430 and fix it if it is affected.\n\nWhat it is: CVE-2021-23430 is a high-severity path traversal vulnerability in startserver, published on 24 Aug 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-2021-23430 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- startserver (npm): affected all versions up to 1.4.1; no fix listed\n- startserver (npm): affected all versions up to 1.4.1; no fix listed\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-2021-23430/ (Markdown: https://insights.sbomify.com/CVE-2021-23430/index.md)","id":"CVE-2021-23430","markdown":"https://insights.sbomify.com/CVE-2021-23430/index.md","name":"CVE-2021-23430","record":{"aliases":["GHSA-hqv3-qq72-78cv"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Node.js server library","requires_auth":"none","summary":"Attackers can read arbitrary files from the server due to missing input sanitization in the startserver npm package.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"startserver","vendor":"startserver_project"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"All versions of package startserver are vulnerable to Directory Traversal due to missing sanitization.","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":false,"headline":"Directory Traversal","id":"CVE-2021-23430","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"path_traversal","year":"2021"},"n_packages":2,"n_references":2,"next":{"headline":"Cross-site Request Forgery (CSRF)","id":"CVE-2021-23431"},"packages":[{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":["1.4.1"],"package":"startserver","purl":null,"source":"GHSA-hqv3-qq72-78cv"},{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":["1.4.1"],"package":"startserver","purl":"pkg:npm/startserver","source":"GHSA-hqv3-qq72-78cv"}],"prev":{"headline":"Denial of Service (DoS)","id":"CVE-2021-23429"},"products":["startserver"],"published":"2021-08-24","related":[],"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":"2024-09-17","vendors":["n/a"]},"summary":"Attackers can read arbitrary files from the server due to missing input sanitization in the startserver npm package.","url":"https://insights.sbomify.com/CVE-2021-23430/"}