CVE-2017-16935: Ametys

Critical severity, CVSS 9.8. EPSS: 7.7% chance of exploitation in the next 30 days.

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.

Affected products

• Ametys Ametys: before 4.0.3 (fixed in 4.0.3)

Published 2017-11-24. Last modified 2026-06-17.