CVE-2021-4231 : A vulnerability was found in Angular up to 11.0.4/11.1.0-next.2. It has been cla

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 11.0.5 and 11.1.0-next.3 is able to address this issue. The name of the patch is ba8da742e3b243e8f43d4c63aa842b44e14f2b09. It is recommended to upgrade the affected component.

Published 2022-05-26 14:15:08

Updated 2022-06-07 19:07:10

Source VulDB

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Products affected by CVE-2021-4231

Angular » Angular » For Node.js
Versions before (<) 11.0.5
cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:*
Matching versions
Angular » Angular » Version: 11.1.0 Update Next 1 For Node.js
cpe:2.3:a:angular:angular:11.1.0:next_1:*:*:*:node.js:*:*
Matching versions
Angular » Angular » Version: 11.1.0 Update Next 2 For Node.js
cpe:2.3:a:angular:angular:11.1.0:next_2:*:*:*:node.js:*:*
Matching versions
Angular » Angular » Version: 11.1.0 Update Next 0 For Node.js
cpe:2.3:a:angular:angular:11.1.0:next_0:*:*:*:node.js:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-4231

EPSS FAQ

0.08%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 32 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-4231

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
3.5	LOW	AV:N/AC:M/Au:S/C:N/I:P/A:N	6.8	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: Single Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
3.5	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N	2.1	1.4	VulDB
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: Low Availability: None
5.4	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N	2.3	2.7	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None

CWE ids for CVE-2021-4231

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Assigned by:
- cna@vuldb.com (Secondary)
- nvd@nist.gov (Primary)

References for CVE-2021-4231

https://security.snyk.io/vuln/SNYK-JS-ANGULARCORE-1070902

Cross-site Scripting (XSS) in @angular/core | Snyk
Third Party Advisory
https://github.com/angular/angular/commit/ba8da742e3b243e8f43d4c63aa842b44e14f2b09

fix(core): fix possible XSS attack in development through SSR (#40525) · angular/angular@ba8da74 · GitHub
Patch;Third Party Advisory
https://vuldb.com/?id.181356

Login required
Third Party Advisory
https://github.com/angular/angular/issues/40136

Xss fix by mhevery · Pull Request #40136 · angular/angular · GitHub
Third Party Advisory

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Vulnerability Details : CVE-2021-4231

Products affected by CVE-2021-4231

Exploit prediction scoring system (EPSS) score for CVE-2021-4231

CVSS scores for CVE-2021-4231

CWE ids for CVE-2021-4231

References for CVE-2021-4231