CVE-2020-35666

Name: CVE-2020-35666
Creator: NVD / NIST
Published: 2020-12-23T20:15:12.927+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.07%

Last modified Jun 17, 2026

CVE-2020-35666 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Steedos Platform through 1.21.24 allows NoSQL injection because the /api/collection/findone implementation in server/packages/steedos_base.js mishandles req.body validation, as demonstrated by MongoDB operator attacks such as an X-User-Id[$ne]=1 value.. EPSS estimates a 1.07% chance of exploitation in the next 30 days.

Description

Steedos Platform through 1.21.24 allows NoSQL injection because the /api/collection/findone implementation in server/packages/steedos_base.js mishandles req.body validation, as demonstrated by MongoDB operator attacks such as an X-User-Id[$ne]=1 value.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.07%

60.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Steedos	Steedos	<= 1.21.24

References

https://github.com/steedos/steedos-platform/issues/1245Exploit, Vendor Advisory
https://github.com/steedos/steedos-platform/issues/1245Exploit, Vendor Advisory

Timeline

Published: Dec 23, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-35666?

How severe is CVE-2020-35666?

CVE-2020-35666 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.07% probability of exploitation in the next 30 days.

How do I fix CVE-2020-35666?

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-2020-35666?

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

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Source: NVD / NIST