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Cross-site Scripting in edge.js

Moderate severity GitHub Reviewed Published Sep 22, 2021 to the GitHub Advisory Database • Updated Sep 11, 2023

Package

npm edge.js (npm)

Affected versions

< 5.3.2

Patched versions

5.3.2

Description

Edge is a logical and batteries included template engine for Node.js. This affects the package edge.js before 5.3.2. A type confusion vulnerability can be used to bypass input sanitization when the input to be rendered is an array (instead of a string or a SafeValue), even if {{ }} are used.

References

Published by the National Vulnerability Database Sep 21, 2021
Reviewed Sep 22, 2021
Published to the GitHub Advisory Database Sep 22, 2021
Last updated Sep 11, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS score

0.071%
(32nd percentile)

Weaknesses

CVE ID

CVE-2021-23443

GHSA ID

GHSA-55r9-7mf8-m382

Source code

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