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Fencer Vulns
low 3.5

CVE-2021-4231 json

Angular Comment cross site scripting

published 2022-05-26 4 y ago modified 2026-09-10 1 mo ago also GHSA-c75v-2vq8-878f , EUVD-2022-3522

cvss
3.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 67%
public exploits
0
none known

Summary

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.

Patch / fix

  • npm @angular/core 10.2.5, 11.0.5, 11.1.0-next.3
  • angularjs angularjs 11.0.5
  • ceph ceph storage 6.1 2:17.2.6-70.el9cp
  • cephadm ceph storage 6.1 2:17.2.6-70.el9cp
  • librbd1 ceph storage 6.1 2:17.2.6-70.el9cp
  • librgw2 ceph storage 6.1 2:17.2.6-70.el9cp
  • rbd-nbd ceph storage 6.1 2:17.2.6-70.el9cp
  • ceph-mib ceph storage 6.1 2:17.2.6-70.el9cp
  • ceph-base ceph storage 6.1 2:17.2.6-70.el9cp
  • ceph-fuse ceph storage 6.1 2:17.2.6-70.el9cp

red hat advisories RHSA-2023:3623

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-4231 updated cvss 3.9

angular: XSS vulnerability

  • Red Hat .NET Core 3.1 on Red Hat Enterprise Linux rh-dotnet31-dotnet, rh-dotnet31-dotnet-host, rh-dotnet31-dotnet-sdk-3.1, rh-dotnet31-dotnet-hostfxr-3.1, rh-dotnet31-dotnet-runtime-3.1, rh-dotnet31-dotnet-templates-3.1, +6 more
    affected: no fix available “Fix deferred”
  • Red Hat .NET Core 5.0 on Red Hat Enterprise Linux rh-dotnet50-dotnet, rh-dotnet50-dotnet-host, rh-dotnet50-dotnet-sdk-5.0, rh-dotnet50-dotnet-hostfxr-5.0, rh-dotnet50-dotnet-runtime-5.0, rh-dotnet50-dotnet-templates-5.0, +6 more
    affected: no fix planned “Out of support scope”
  • Red Hat Ceph Storage 4 ceph, librbd1, librgw2, rbd-nbd, ceph-mds, ceph-mgr, +27 more Red Hat Ceph Storage 5 ceph, cephadm, librbd1, librgw2, rbd-nbd, ceph-mds, +33 more
    affected: no fix available
  • Red Hat Enterprise Linux 8 dotnet, firefox, mozjs60, dotnet3.1, dotnet-host, thunderbird, +10 more Red Hat Enterprise Linux 9 gjs, firefox, firefox-x11, thunderbird Red Hat Fuse 7 io.apicurio-apicurito io.apicurio-apicurito
    affected: no fix available “Fix deferred”
  • Red Hat Openshift Container Storage 4 ceph
    affected: no fix planned “Out of support scope”
  • Red Hat Openshift Data Foundation 4 ceph
    affected: no fix available
  • Red Hat Ceph Storage 6.1 Tools ceph 17.2.6-70.el9cp, cephadm 17.2.6-70.el9cp, librbd1 17.2.6-70.el9cp, librgw2 17.2.6-70.el9cp, rbd-nbd 17.2.6-70.el9cp, ceph-mib 17.2.6-70.el9cp, +16 more
    fixed: vendor fix RHSA-2023:3623
  • Red Hat Ceph Storage 6.1 Tools cephadm-ansible 2.15.0-1.el9cp, ansible-collection-ansible-posix 1.2.0-1.3.el9ost Red Hat Enterprise Linux 6 firefox Red Hat Enterprise Linux 7 firefox, thunderbird Red Hat Enterprise Linux 9 polkit, polkit-libs
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

1.18% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N
GitHub 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
npm @angular/core
>=11.0.0, <11.0.5
>=11.1.0-next.0, <11.1.0-next.3
<10.2.5
11.0.5
11.1.0-next.3
10.2.5

Affected products

  • unspecified Angular

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.