{"answers":{"affected":"2 open source packages ship an affected version, including is-user-valid. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-23335 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-23335 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-23335 is a high-severity authentication bypass vulnerability in is-user-valid, published on 11 Feb 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-2021-23335 and fix it if it is affected.\n\nWhat it is: CVE-2021-23335 is a high-severity authentication bypass vulnerability in is-user-valid, published on 11 Feb 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-2021-23335 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- is-user-valid (npm): affected all versions up to 1.1.2; no fix listed\n- is-user-valid (npm): affected all versions up to 1.1.2; 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-2021-23335/ (Markdown: https://insights.sbomify.com/CVE-2021-23335/index.md)","id":"CVE-2021-23335","markdown":"https://insights.sbomify.com/CVE-2021-23335/index.md","name":"CVE-2021-23335","record":{"aliases":["GHSA-22cm-3qf2-2wc7"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["security_bypass","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"npm validation library","requires_auth":"none","summary":"Attackers can exploit LDAP injection in the is-user-valid library to bypass authentication or expose sensitive information.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"is-user-valid","vendor":"is-user-valid_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/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component"}],"description":"All versions of package is-user-valid are vulnerable to LDAP Injection which can lead to either authentication bypass or information exposure.","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":"LDAP Injection","id":"CVE-2021-23335","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"auth_bypass","year":"2021"},"n_packages":2,"n_references":1,"next":{"headline":"Web Cache Poisoning","id":"CVE-2021-23336"},"packages":[{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":["1.1.2"],"package":"is-user-valid","purl":null,"source":"GHSA-22cm-3qf2-2wc7"},{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":["1.1.2"],"package":"is-user-valid","purl":"pkg:npm/is-user-valid","source":"GHSA-22cm-3qf2-2wc7"}],"prev":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2021-23334"},"products":["is-user-valid"],"published":"2021-02-11","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":"2024-09-16","vendors":["n/a"]},"summary":"Attackers can exploit LDAP injection in the is-user-valid library to bypass authentication or expose sensitive information.","url":"https://insights.sbomify.com/CVE-2021-23335/"}