CVE-2021-4231

lowpriority · track · 22EPSS 0.012 · 68 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.18% (68th) EPSS

CVSS 3.5 · low

Is it mine?

44 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · osv

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

5.4

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.5–5.4

v2.03.5lowAV:N/AC:M/Au:S/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 6.8 · impact 2.9

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.3 · impact 2.7

v3.13.5lowCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:Nsecondary · ENISA EU

v3.13.5lowCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:Nsecondary · cna@vuldb.comexploitability 2.1 · impact 1.4

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:Nsecondary · OSV

v3.15mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimaryCWE-79US

affected products (44)

Products and version ranges known to be affected.

Atlassian Bitbucket <10.0.2all versionscert_bundDE
Atlassian Bitbucket <8.19.25 (LTS)all versionscert_bundDE
Atlassian Bitbucket <9.4.13 (LTS)all versionscert_bundDE
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
Meinberg LANTIME <7.08.007all versionscert_bundDE
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat Enterprise Linux Advanced Cluster Security for Kubernetes 4all versionscert_bundDEcpe:/o:redhat:enterprise_linux:advanced_cluster_security_for_kubernetes_4
Red Hat Enterprise Linux Ceph Storage 6.1all versionscert_bundDEcpe:/o:redhat:enterprise_linux:ceph_storage_6.1
Red Hat Enterprise Linux Service Interconnect 1all versionscert_bundDEcpe:/o:redhat:enterprise_linux:service_interconnect_1
Red Hat OpenShiftall versionscert_bundDEcpe:/a:redhat:openshift:-
Red Hat OpenShift Container Platform 4.12all versionscert_bundDEcpe:/a:redhat:openshift:container_platform_4.12
Red Hat OpenShift Container Platform <4.11.44all versionscert_bundDE
Red Hat OpenShift Container Platform <4.12.22all versionscert_bundDE
Red Hat OpenShift Container Platform <4.12.46all versionscert_bundDE
Red Hat OpenShift Container Platform <4.13.4all versionscert_bundDE
Red Hat OpenShift Container Platform <4.14.0all versionscert_bundDE
Red Hat OpenShift Data Foundation <4.12.10all versionscert_bundDE
Red Hat OpenShift Data Foundation <4.13.0all versionscert_bundDE

showing 20 of 44

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1489Red Hat Enterprise Linux Ceph Storage: Mehrere SchwachstellenDeutsch2023-06-15csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen und einen Denial of Service Zustand auszulösen.
WID-SEC-W-2023-1542Red Hat OpenShift: Mehrere SchwachstellenDeutsch2023-06-22csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat OpenShift ausnutzen, um einen Denial of Service Zustand herbeizuführen, Informationen offenzulegen, Dateien zu manipulieren oder Sicherheitsvorkehrungen zu umgehen.
GHSA-c75v-2vq8-878fAngular vulnerable to Cross-site Scripting2022-05-27ghsa · osvUS
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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund osv NVD CVE.org MITRE

published 2022-05-26modified 2026-06-17

related (53,009)

Related entries.

ID	severity	EPSS	exploitable	published
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Roundcube Webmail before 1.5.12 and 1.6 before 1.6.12 is prone to a Cross-Site-Scripting (XSS) vulnerability via the animate tag in an SVG document.
CVE-2025-48700US	—OT critical	1.71% (77th)	KEV	2025-06-23
An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0 and 10.0 and 10.1. A Cross-Site Scripting (XSS) vulnerability in the Zimbra Classic UI allows attackers to exec…
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An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0 and 10.1. A stored cross-site scripting (XSS) vulnerability exists in the Classic Web Client due to insufficient…

+53004 more

references (14)

External citations — patches, advisories, analysis.

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