CVE-2017-16935

Name: CVE-2017-16935
Creator: NVD / NIST
Published: 2017-11-24T07:29:00.303+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 7.66%

Last modified Jun 17, 2026

CVE-2017-16935 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 7.66% chance of exploitation in the next 30 days.

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

EPSS Probability

7.66%

93.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Ametys	Ametys	< 4.0.3

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
Status: Modified

Frequently Asked Questions

What is CVE-2017-16935?

How severe is CVE-2017-16935?

Severity scoring for CVE-2017-16935 is pending analysis. The EPSS model estimates a 7.66% probability of exploitation in the next 30 days.

How do I fix CVE-2017-16935?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-16935?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST