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CVE-2020-35666: Steedos Platform through 1.21.24 allows NoSQL injection because the /api/collection/findone implementation in

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HIGH 8.8UPGRADE

CVE-2020-35666 is a high-severity flaw (CVSS 8.8) affecting steedos. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

  • High severity
  • Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score8.8 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance1.1% (top 35%)
CISA exploited listNo
WeaknessCWE-89
Published2020-12-23
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: steedos

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

steedos steedos UPGRADE
Affected: <= 1.21.24
Fixed in: newer than 1.21.24
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy steedos || rpm -q steedos || steedos --version
2. UPGRADE to newer than 1.21.24 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade steedos
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade steedos
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-35666?

steedos: upgrade to newer than 1.21.24. Exact commands for each OS are on this page.

Is CVE-2020-35666 being exploited?

CVE-2020-35666 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-35666 affect?

CVE-2020-35666 affects steedos. Severity is high (CVSS 8.8). 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[$

How urgent is CVE-2020-35666?

Priority 52/100. High severity; Public exploit reference

Software pages

MongoDB vulnerabilities

References

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