CVE-2017-16935

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-20

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://blogs.securiteam.com/index.php/archives/3517Exploit, Technical Description, Third Party Advisory
https://issues.ametys.org/browse/RUNTIME-2582Issue Tracking, Vendor Advisory
https://blogs.securiteam.com/index.php/archives/3517Exploit, Technical Description, Third Party Advisory
https://issues.ametys.org/browse/RUNTIME-2582Issue Tracking, Vendor Advisory

Timeline

Published: Nov 24, 2017
Last modified: Jun 17, 2026
NVD status: Modified

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