{"id":"CVE-2017-7725","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-7725","generatedAt":"2026-10-28T21:17:55.222Z","title":"Remote attackers can make a GET request with any domain name in the Host header; this is stored and allows for arbitrary domains to be set for certain links displayed to subsequent visitors, potentially an XSS vector.","description":"concrete5 8.1.0 places incorrect trust in the HTTP Host header during caching, if the administrator did not define a \"canonical\" URL on installation of concrete5 using the \"Advanced Options\" settings. Remote attackers can make a GET request with any domain name in the Host header; this is stored and allows for arbitrary domains to be set for certain links displayed to subsequent visitors, potentially an XSS vector.","published":"2017-04-13T17:59:01.000Z","lastModified":"2026-06-17T01:25:03.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["concretecms/concrete cms"],"epss":{"score":0.02752,"percentile":0.8614,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2017-04-14","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":41885,"kind":"exploit","title":"Concrete5 CMS 8.1.0 - 'Host' Header Injection","url":"https://www.exploit-db.com/exploits/41885","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/webapps/41885.txt","file":"exploits/php/webapps/41885.txt","published":"2017-04-14","added":"2017-04-14","updated":"2018-07-17","author":"hyp3rlinx","type":"webapps","platform":"php","port":null,"verified":true,"codes":["CVE-2017-7725"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comconcrete5-8.1.0.zip","screenshotUrl":"http://www.exploit-db.com/screenshots/idlt42000/41885.png","referenceUrl":null}]},"verdict":{"level":"high","text":"A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 2.8%. Treat it as high on anything reachable from the internet."},"changes":[],"references":[{"url":"http://hyp3rlinx.altervista.org/advisories/CONCRETE5-v8.1.0-HOST-HEADER-INJECTION.txt","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/97649","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://hackerone.com/reports/148300","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://packetstormsecurity.com/files/142145/concrete5-8.1.0-Host-Header-Injection.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/41885/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://hyp3rlinx.altervista.org/advisories/CONCRETE5-v8.1.0-HOST-HEADER-INJECTION.txt","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/97649","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://hackerone.com/reports/148300","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://packetstormsecurity.com/files/142145/concrete5-8.1.0-Host-Header-Injection.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/41885/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-7725","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}