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CVE-2020-24391

79
FAUCET Score

CVE-2020-24391 describes a critical vulnerability in mongo-express versions prior to 1.0.0, where its implementation of advanced syntax support is unsafe. This flaw allows for unauthenticated remote code execution with high impact on confidentiality, integrity, and availability, as indicated by its CVSS score of 9.8 (Critical). While there's no evidence of active exploitation or Metasploit modules, Nuclei templates exist for remote code execution, and its high EPSS score suggests a significant likelihood of future exploitation. Despite this, there is currently no public community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.54.0CPE matchmatch criteria
cpe:2.3:a:mongo-express_project:mongo-express:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
74.52%
Probability of exploitation in next 30 days
EPSS Percentile
99.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2020-24391 · Jan 20, 2022
This CVE's current EPSS score of 0.7452 is in the 98th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: mongodb-query-parserFixed in: 2.0.0

Vendor Advisories (1)

npmGHSA-hxmg-hm46-cf62critical

Remote code execution in mongo-express

Apr 13, 2021

References

github.com / mongodb-js/query-parser/issues/16
Third Party Advisory
github.com / mongo-express/mongo-express/commit/3a26b079e7821e0e209c3ee0cc2ae15ad467b91a
PatchThird Party Advisory