CVE-2021-32697
Form Finishers can be adjusted in a way that they only execute an action if the submitted form contains some expected data.
Does this matter?
Lower severity and a low EPSS score (1.12%). Track it; it rarely justifies an emergency change on its own.
Description
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
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 1.12% probability · 66th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- neos/form
- Source
- security-advisories@github.com
EPSS 1.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/neos/form-ghsa-m5vx-8chx-qvmm/pull/1Broken Link
- https://github.com/neos/form/commit/049d415295be8d4a0478ccba97dba1bb81649567Patch, Third Party Advisory
- https://github.com/neos/form/commit/69de4219b1f58157e2be6b05811463875d75c246Patch, Third Party Advisory
- https://github.com/neos/form/releases/tag/5.1.3Release Notes, Third Party Advisory
- https://github.com/neos/form/security/advisories/GHSA-m5vx-8chx-qvmmThird Party Advisory
- https://github.com/neos/form-ghsa-m5vx-8chx-qvmm/pull/1Broken Link
- https://github.com/neos/form/commit/049d415295be8d4a0478ccba97dba1bb81649567Patch, Third Party Advisory
- https://github.com/neos/form/commit/69de4219b1f58157e2be6b05811463875d75c246Patch, Third Party Advisory
- https://github.com/neos/form/releases/tag/5.1.3Release Notes, Third Party Advisory
- https://github.com/neos/form/security/advisories/GHSA-m5vx-8chx-qvmmThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.