--- id: CVE-2016-1182 title: >- ActionServlet.java in Apache Struts 1 1.x through 1.3.10 does not properly restrict the Validator configuration, which allows remote attackers to conduct cross-site scripting (XSS) attacks or cause a denial of service via crafted input, … summary: >- ActionServlet.java in Apache Struts 1 1.x through 1.3.10 does not properly restrict the Validator configuration, which allows remote attackers to conduct cross-site scripting (XSS) attacks or cause a denial of service via crafted input, … severity: high cvss: 8.2 cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H' cwe: - CWE-20 vendor: apache product: struts affected: - struts = 1.0 - struts = 1.0.1 - struts = 1.0.2 - struts = 1.1 - struts = 1.2.0 - struts = 1.2.1 - struts = 1.2.2 - struts = 1.2.3 - struts = 1.2.4 - struts = 1.2.5 - struts = 1.2.6 - struts = 1.2.7 - struts = 1.2.8 - struts = 1.2.9 - struts = 1.3.5 - struts = 1.3.6 - struts = 1.3.7 - struts = 1.3.8 - struts = 1.3.9 - struts = 1.3.10 published: '2016-07-04' updated: '2026-10-15' sourceUpdated: '2026-10-15T16:17:24.810' source: NVD sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2016-1182' references: - url: 'http://jvn.jp/en/jp/JVN65044642/index.html' label: vultures@jpcert.or.jp - url: 'http://jvndb.jvn.jp/jvndb/JVNDB-2016-000097' label: vultures@jpcert.or.jp - url: >- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html label: vultures@jpcert.or.jp - url: >- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html label: vultures@jpcert.or.jp - url: >- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html label: vultures@jpcert.or.jp - url: >- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html label: vultures@jpcert.or.jp - url: >- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html label: vultures@jpcert.or.jp - url: >- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html label: vultures@jpcert.or.jp - url: 'http://www.securityfocus.com/bid/91067' label: vultures@jpcert.or.jp - url: 'http://www.securityfocus.com/bid/91787' label: vultures@jpcert.or.jp - url: 'http://www.securitytracker.com/id/1036056' label: vultures@jpcert.or.jp - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=1343540' label: vultures@jpcert.or.jp - url: >- https://github.com/kawasima/struts1-forever/commit/eda3a79907ed8fcb0387a0496d0cb14332f250e8 label: vultures@jpcert.or.jp - url: 'https://security-tracker.debian.org/tracker/CVE-2016-1182' label: vultures@jpcert.or.jp - url: 'https://security.netapp.com/advisory/ntap-20180629-0006/' label: vultures@jpcert.or.jp - url: 'https://www.oracle.com/security-alerts/cpujan2020.html' label: vultures@jpcert.or.jp - url: 'https://www.oracle.com/security-alerts/cpujul2020.html' label: vultures@jpcert.or.jp - url: >- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html label: vultures@jpcert.or.jp - url: >- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html label: vultures@jpcert.or.jp - url: >- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html label: vultures@jpcert.or.jp - url: 'http://jvn.jp/en/jp/JVN65044642/index.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://jvndb.jvn.jp/jvndb/JVNDB-2016-000097' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html label: af854a3a-2127-422b-91ae-364da2661108 - url: >- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html label: af854a3a-2127-422b-91ae-364da2661108 - url: >- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html label: af854a3a-2127-422b-91ae-364da2661108 - url: >- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html label: af854a3a-2127-422b-91ae-364da2661108 - url: >- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html label: af854a3a-2127-422b-91ae-364da2661108 - url: >- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://www.securityfocus.com/bid/91067' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://www.securityfocus.com/bid/91787' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://www.securitytracker.com/id/1036056' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=1343540' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://github.com/kawasima/struts1-forever/commit/eda3a79907ed8fcb0387a0496d0cb14332f250e8 label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://security-tracker.debian.org/tracker/CVE-2016-1182' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://security.netapp.com/advisory/ntap-20180629-0006/' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.oracle.com/security-alerts/cpujan2020.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.oracle.com/security-alerts/cpujul2020.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html label: af854a3a-2127-422b-91ae-364da2661108 tags: - nvd - cve.org epss: 0.25737 epssPercentile: 0.97957 ssvc: exploitation: none automatable: 'yes' technicalImpact: partial timestamp: '2026-10-15T15:20:52.260994Z' ingestedAt: '2026-10-15T16:13:11.490Z' --- ## Overview ActionServlet.java in Apache Struts 1 1.x through 1.3.10 does not properly restrict the Validator configuration, which allows remote attackers to conduct cross-site scripting (XSS) attacks or cause a denial of service via crafted input, a related issue to CVE-2015-0899. ## Affected - `struts = 1.0` - `struts = 1.0.1` - `struts = 1.0.2` - `struts = 1.1` - `struts = 1.2.0` - `struts = 1.2.1` - `struts = 1.2.2` - `struts = 1.2.3` - `struts = 1.2.4` - `struts = 1.2.5` - `struts = 1.2.6` - `struts = 1.2.7` - `struts = 1.2.8` - `struts = 1.2.9` - `struts = 1.3.5` - `struts = 1.3.6` - `struts = 1.3.7` - `struts = 1.3.8` - `struts = 1.3.9` - `struts = 1.3.10` ## Remediation Refer to the linked advisories for vendor-supplied fixes and affected version ranges.