{"id":"CVE-2017-16935","aliases":["EUVD-2017-8104","GHSA-4x38-6389-m4h2"],"status":"published","title":"Ametys before 4.0.3 requires authentication only for URIs containing a /cms/ substring, which...","description":"Ametys before 4.0.3 requires authentication only for URIs containing a /cms/ substring, which allows remote attackers to bypass intended access restrictions via a direct request to /plugins/core-ui/servercomm/messages.xml, as demonstrated by changing the admin password by obtaining account details via a users/search.json request, and then modifying the account via an editUser request.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.07663,"percentile":0.94618,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-20"],"published":"2017-11-24T07:00:00Z","modified":"2026-06-17T01:10:10Z","exploits":[{"source":"exploitdb","id":"EDB-44050","title":"Ametys CMS 4.0.2 - Password Reset","type":"webapps","platform":"php","date":"2017-11-07","url":"https://www.exploit-db.com/exploits/44050"}],"products":[{"vendor":"ametys","product":"ametys"}],"references":[{"url":"https://blogs.securiteam.com/index.php/archives/3517","tags":["x_refsource_MISC","x_transferred","Exploit","Technical Description","Third Party Advisory"]},{"url":"https://issues.ametys.org/browse/RUNTIME-2582","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-16935"},{"url":"https://github.com/advisories/GHSA-4x38-6389-m4h2"}],"sources":{"cve":[{"id":"CVE-2017-16935","description":"Ametys before 4.0.3 requires authentication only for URIs containing a /cms/ substring, which allows remote attackers to bypass intended access restrictions via a direct request to /plugins/core-ui/servercomm/messages.xml, as demonstrated by changing the admin password by obtaining account details via a users/search.json request, and then modifying the account via an editUser request.","status":"published","published":"2017-11-24T07:00:00Z","modified":"2024-08-05T20:43:57.812Z","updated_at":"2026-11-02T14:33:21.453505Z"}],"euvd":[{"id":"EUVD-2017-8104","description":"Ametys before 4.0.3 requires authentication only for URIs containing a /cms/ substring, which allows remote attackers to bypass intended access restrictions via a direct request to /plugins/core-ui/servercomm/messages.xml, as demonstrated by changing the admin password by obtaining account details via a users/search.json request, and then modifying the account via an editUser request.","status":"published","published":"2017-11-24T07:00:00Z","modified":"2024-08-05T20:43:57Z","updated_at":"2026-11-03T02:23:11.095005Z"}],"ghsa":[{"id":"GHSA-4x38-6389-m4h2","title":"Ametys before 4.0.3 requires authentication only for URIs containing a /cms/ substring, which...","description":"Ametys before 4.0.3 requires authentication only for URIs containing a /cms/ substring, which allows remote attackers to bypass intended access restrictions via a direct request to /plugins/core-ui/servercomm/messages.xml, as demonstrated by changing the admin password by obtaining account details via a users/search.json request, and then modifying the account via an editUser request.","status":"published","published":"2022-05-13T01:44:14Z","modified":"2023-02-02T05:01:02Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:51:05.383671Z"}],"nvd":[{"id":"CVE-2017-16935","description":"Ametys before 4.0.3 requires authentication only for URIs containing a /cms/ substring, which allows remote attackers to bypass intended access restrictions via a direct request to /plugins/core-ui/servercomm/messages.xml, as demonstrated by changing the admin password by obtaining account details via a users/search.json request, and then modifying the account via an editUser request.","status":"published","published":"2017-11-24T07:29:00.303Z","modified":"2026-06-17T01:10:10.593Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:04:09.7374Z"}]}}