{"id":"CVE-2016-3087","aliases":["GHSA-mmj6-cjj4-hpr5"],"url":"https://o3.security/vulnerability/CVE-2016-3087","summary":"Apache Struts vulnerable to arbitrary remote code execution due to improper input validation","details":"Apache Struts 2.3.19 to 2.3.20.2, 2.3.21 to 2.3.24.1, and 2.3.25 to 2.3.28, when Dynamic Method Invocation is enabled, allow remote attackers to execute arbitrary code via vectors related to an ! (exclamation mark) operator to the REST Plugin.","published":"2016-06-07T18:59:02.713Z","modified":"2026-07-08T05:48:11.139667538Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":5,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.struts:struts2-core","fixedVersion":"2.3.20.3"},{"ecosystem":"Maven","name":"org.apache.struts:struts2-core","fixedVersion":"2.3.24.3"},{"ecosystem":"Maven","name":"org.apache.struts:struts2-core","fixedVersion":"2.3.28.1"}],"fix":{"url":"https://github.com/apache/struts/commit/6bd694b7980494c12d49ca1bf39f12aec3e03e2f","label":"apache/struts@6bd694b"},"references":[{"type":"WEB","url":"http://www-01.ibm.com/support/docview.wss?uid=swg21987854"},{"type":"WEB","url":"http://www.securityfocus.com/bid/90960"},{"type":"WEB","url":"http://www.securitytracker.com/id/1036017"},{"type":"WEB","url":"https://www.exploit-db.com/exploits/39919/"},{"type":"ADVISORY","url":"http://struts.apache.org/docs/s2-033.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2016-3087"},{"type":"WEB","url":"https://github.com/apache/struts/commit/6bd694b7980494c12d49ca1bf39f12aec3e03e2f"},{"type":"PACKAGE","url":"https://github.com/apache/struts"},{"type":"WEB","url":"https://web.archive.org/web/20160616082237/http://www.securitytracker.com/id/1036017"},{"type":"WEB","url":"https://web.archive.org/web/20160728170709/http://www.securityfocus.com/bid/90960"},{"type":"WEB","url":"https://www.exploit-db.com/exploits/39919"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:48:11.139667538Z"}}