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Cross site scripting in Angular

Moderate severity GitHub Reviewed Published May 27, 2022 to the GitHub Advisory Database • Updated Oct 10, 2023

Package

npm @angular/core (npm)

Affected versions

>= 11.1.0-next.0, <= 11.1.0-next.2
>= 11.0.0, < 11.0.5
< 10.2.5

Patched versions

11.1.0-next.3
11.0.5
10.2.5

Description

A vulnerability was found in Angular up to 11.0.4/11.1.0-next.2. It has been classified as problematic. Affected is the handling of comments. The manipulation leads to cross site scripting. It is possible to launch the attack remotely but it might require an authentication first. Upgrading to version 10.2.5, 11.0.5 or 11.1.0-next.3 is advised to to address this issue.

References

Published by the National Vulnerability Database May 26, 2022
Published to the GitHub Advisory Database May 27, 2022
Reviewed Jun 2, 2022
Last updated Oct 10, 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
Low
User interaction
Required
Scope
Changed
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:L/UI:R/S:C/C:L/I:L/A:N

EPSS score

0.077%
(34th percentile)

Weaknesses

CVE ID

CVE-2021-4231

GHSA ID

GHSA-c75v-2vq8-878f

Source code

Credits

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