{"cve":"CVE-2023-43496","nvd":{"published":"2023-09-20T17:15:11.820","modified":"2026-06-17T06:25:36.133","status":"Modified","description":"Jenkins 2.423 and earlier, LTS 2.414.1 and earlier creates a temporary file in the system temporary directory with the default permissions for newly created files when installing a plugin from a URL, potentially allowing attackers with access to the system temporary directory to replace the file before it is installed in Jenkins, potentially resulting in arbitrary code execution.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-276"],"references":["http://www.openwall.com/lists/oss-security/2023/09/20/5","https://www.jenkins.io/security/advisory/2023-09-20/#SECURITY-3072","http://www.openwall.com/lists/oss-security/2023/09/20/5","https://www.jenkins.io/security/advisory/2023-09-20/#SECURITY-3072"],"products":["jenkins:jenkins"],"source":"nvd","synced_at":"2026-10-19T21:39:24.235896374+00:00"},"epss":{"cve":"CVE-2023-43496","score":0.01042,"percentile":0.64085,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-55wp-3pq4-w8p9","url":"https://osv.dev/vulnerability/GHSA-55wp-3pq4-w8p9","summary":"Jenkins temporary plugin file created with insecure permissions ","modified":"2025-05-02T19:25:53.525329Z","packages":[{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core","ranges":[">=2.50 <2.414.2"],"fixed":["2.414.2"]},{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core","ranges":[">=2.415 <2.424"],"fixed":["2.424"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}