{"id":"CVE-2017-16935","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-16935","generatedAt":"2026-10-28T21:20:04.976Z","title":"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…","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.","published":"2017-11-24T07:29:00.000Z","lastModified":"2026-06-17T01:10:11.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","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"},"cwe":["CWE-20"],"affected":["ametys/ametys"],"epss":{"score":0.07663,"percentile":0.94555,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.05787,"percentile":0.92816},{"date":"2026-09-22","score":0.07663,"percentile":0.94315}]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2017-11-07","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":44050,"kind":"exploit","title":"Ametys CMS 4.0.2 - Password Reset","url":"https://www.exploit-db.com/exploits/44050","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/webapps/44050.md","file":"exploits/php/webapps/44050.md","published":"2017-11-07","added":"2018-02-15","updated":"2018-02-15","author":"SecuriTeam","type":"webapps","platform":"php","port":null,"verified":false,"codes":["CVE-2017-16935"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://blogs.securiteam.com/index.php/archives/3517"}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB and the impact is critical, while EPSS rates exploitation at 7.7%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"https://blogs.securiteam.com/index.php/archives/3517","tags":["Exploit","Technical Description","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://issues.ametys.org/browse/RUNTIME-2582","tags":["Issue Tracking","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://blogs.securiteam.com/index.php/archives/3517","tags":["Exploit","Technical Description","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://issues.ametys.org/browse/RUNTIME-2582","tags":["Issue Tracking","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-16935","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."}