CVE-2021-32697
Form validation can be skipped
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
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
Timeline
ID reserved
By GitHub_M
- 40 days later
· 40 days later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| NVDNVD · Modified | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 1.1% · top 34% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Packagistneos/formGHSA-m5vx-8chx-qvmm (opens in a new tab)
References (5)
- https://github.com/neos/form/security/advisories/GHSA-m5vx-8chx-qvmm (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/neos/form-ghsa-m5vx-8chx-qvmm/pull/1 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/neos/form/commit/049d415295be8d4a0478ccba97dba1bb81649567 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/neos/form/commit/69de4219b1f58157e2be6b05811463875d75c246 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/neos/form/releases/tag/5.1.3 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-m5vx-8chx-qvmm (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-32697)Record last updated .