neos/forms is an open source framework to build web forms. By crafting a special `GET` request containing a valid form state, a form can be submitted without invoking any validators. Form state is secured with an HMAC that is still verified. That means that this issue can only be exploited if Form Finishers cause side effects even if no form values have been sent. Form Finishers can be adjusted in a way that they only execute an action if the submitted form contains some expected data. Alternatively a custom Finisher can be added as first finisher. This regression was introduced with https://github.com/neos/form/commit/049d415295be8d4a0478ccba97dba1bb81649567
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2021-06-21T18:15:13

Updated: 2024-08-03T23:25:31.146Z

Reserved: 2021-05-12T00:00:00

Link: CVE-2021-32697

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-06-21T19:15:08.073

Modified: 2024-11-21T06:07:33.163

Link: CVE-2021-32697

cve-icon Redhat

No data.