{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-16621 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2018-16621 yet. Limit exposure of the affected software until one is available.","what":"CVE-2018-16621 is a high-severity code injection vulnerability in Sonatype Nexus Repository Manager, published on 15 Nov 2018. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-16621 and fix it if it is affected.\n\nWhat it is: CVE-2018-16621 is a high-severity code injection vulnerability in Sonatype Nexus Repository Manager, published on 15 Nov 2018. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2018-16621 in the wild and no public exploit code.\n\nAffected product: Sonatype Nexus Repository Manager. 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-2018-16621/ (Markdown: https://insights.sbomify.com/CVE-2018-16621/index.md)","id":"CVE-2018-16621","markdown":"https://insights.sbomify.com/CVE-2018-16621/index.md","name":"CVE-2018-16621","record":{"aliases":["GHSA-g834-v6mc-99mw"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Nexus Repository Manager","requires_auth":"high_privilege","summary":"Attackers can execute arbitrary code via Java Expression Language injection in Sonatype Nexus Repository Manager.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"nexus_repository_manager","vendor":"sonatype"}],"cvss":{"score":7.2,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-917","name":"Improper Neutralization of Special Elements used in an Expression Language Statement"}],"description":"Sonatype Nexus Repository Manager before 3.14 allows Java Expression Language Injection.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2025-05-19","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2025-05-19T00:43:04Z","kind":"github_poc","ref":"https://github.com/Loucy1231/Nexus-Repository-Manager3-EL-CVE-2018-16621-https-www.cve.org-CVERecord-id-CVE-2018-16621-","stars":0,"title":null}],"tier":"poc_unverified"},"has_fix":false,"headline":"Code injection in n/a","id":"CVE-2018-16621","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"sonatype:nexus_repository_manager","products":["sonatype:nexus_repository_manager"],"type":"code_injection","year":"2018"},"n_packages":0,"n_references":2,"next":{"headline":"Cross-site scripting in n/a","id":"CVE-2018-16622"},"packages":[],"prev":{"headline":"Missing authorization in n/a","id":"CVE-2018-16620"},"products":["n/a"],"published":"2018-11-15","related":[{"cvss_score":9.8,"headline":"Sonatype Nexus Repository Manager Incorrect Access Control","id":"CVE-2019-7238","kev_date_added":"2021-12-10","published":"2019-03-21"},{"cvss_score":9.8,"headline":"Hardcoded credentials in n/a","id":"CVE-2019-9629","kev_date_added":null,"published":"2019-07-08"},{"cvss_score":9.8,"headline":"Hardcoded credentials in n/a","id":"CVE-2017-17717","kev_date_added":null,"published":"2017-12-17"},{"cvss_score":9.4,"headline":"Nexus Repository 3 - Authenticated Remote Code Execution via Task Property Injection","id":"CVE-2026-3199","kev_date_added":null,"published":"2026-04-08"},{"cvss_score":9.2,"headline":"Nexus Repository 3 - Hardcoded Credential in Internal Database Component","id":"CVE-2026-5189","kev_date_added":null,"published":"2026-04-15"},{"cvss_score":8.9,"headline":"Nexus Repository 3 - Wildcard Privilege Update Self-Escalation to Administrator","id":"CVE-2026-17601","kev_date_added":null,"published":"2026-08-07"},{"cvss_score":8.8,"headline":"Code injection in n/a","id":"CVE-2020-15871","kev_date_added":null,"published":"2020-07-31"}],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["n/a"]},"summary":"Attackers can execute arbitrary code via Java Expression Language injection in Sonatype Nexus Repository Manager.","url":"https://insights.sbomify.com/CVE-2018-16621/"}