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Fencer Intel
medium 5.4

CVE-2025-66412 json

Angular Stored XSS Vulnerability via SVG Animation, SVG URL and MathML Attributes

published 11mo ago modified 22d ago also EUVD-2025-200118 , GHSA-v4hv-rgfq-gp49

cvss
5.4
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits
0
none known

Summary

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 21.0.2, 20.3.15, and 19.2.17, A Stored Cross-Site Scripting (XSS) vulnerability has been identified in the Angular Template Compiler. It occurs because the compiler's internal security schema is incomplete, allowing attackers to bypass Angular's built-in security sanitization. Specifically, the schema fails to classify certain URL-holding attributes (e.g., those that could contain javascript: URLs) as requiring strict URL security, enabling the injection of malicious scripts. This vulnerability is fixed in 21.0.2, 20.3.15, and 19.2.17.

Patch / fix

  • npm @angular/compiler 19.2.17, 20.3.15, 21.0.2
  • Siemens RUGGEDCOM RST2428P V4.0
  • Siemens SIDIS Prime V4.0.800
  • eap7-wildfly jboss enterprise application platform eus 7.3 7.3.18-3.GA_redhat_00001.1.el7eap
  • eap7-undertow jboss enterprise application platform eus 7.3 2.0.41-8.SP9_redhat_00001.1.el7eap
  • eap7-apache-cxf jboss enterprise application platform eus 7.3 3.4.10-4.SP2_redhat_00004.1.el7eap
  • eap7-apache-cxf-rt jboss enterprise application platform eus 7.3 3.4.10-4.SP2_redhat_00004.1.el7eap
  • eap7-wildfly-modules jboss enterprise application platform eus 7.3 7.3.18-3.GA_redhat_00001.1.el7eap
  • eap7-apache-cxf-tools jboss enterprise application platform eus 7.3 3.4.10-4.SP2_redhat_00004.1.el7eap
  • eap7-wildfly-javadocs jboss enterprise application platform eus 7.3 7.3.18-3.GA_redhat_00001.1.el7eap
  • eap7-wildfly-java-jdk8 jboss enterprise application platform eus 7.3 7.3.18-3.GA_redhat_00001.1.el7eap

red hat advisories RHSA-2026:33371

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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-2025-66412 updated cvss 8.1

angular: Angular Stored XSS Vulnerability via SVG Animation, SVG URL and MathML Attributes

  • Red Hat Logging Subsystem for Red Hat OpenShift openshift-logging/kibana6-rhel8
    affected: workaround, no fix planned “You could always manually sanitize user-controlled input or Disable or restrict dynamic SVG/MathML usage where possible in order to mitigate this flaw.”
  • Red Hat Ceph Storage 5 ceph, cephadm, librbd1, librgw2, rbd-nbd, ceph-mds, +33 more Red Hat Ceph Storage 6 ceph, cephadm, librbd1, librgw2, rbd-nbd, ceph-mib, +16 more Red Hat Ceph Storage 7 ceph, cephadm, librbd1, librgw2, rbd-nbd, ceph-mib, +16 more Red Hat Ceph Storage 8 ceph, cephadm, librbd1, librgw2, rbd-nbd, ceph-mib, +17 more
    affected: workaround, no fix available “You could always manually sanitize user-controlled input or Disable or restrict dynamic SVG/MathML usage where possible in order to mitigate this flaw.”
  • Red Hat Enterprise Linux 7 firefox
    affected: workaround, no fix planned “You could always manually sanitize user-controlled input or Disable or restrict dynamic SVG/MathML usage where possible in order to mitigate this flaw.”
  • Red Hat Enterprise Linux 8 mozjs60, intel-cmt-cat Red Hat Enterprise Linux 9 gjs, librbd1, librados2, intel-cmt-cat Red Hat Enterprise Linux 10 gjs, ceph, intel-cmt-cat Red Hat Fuse 7 io.hawt-project, io.apicurio-apicurito, io.hawt-hawtio-online, io.hawt-hawtio-integration, io.syndesis-syndesis-parent
    affected: workaround, no fix available, no fix planned “You could always manually sanitize user-controlled input or Disable or restrict dynamic SVG/MathML usage where possible in order to mitigate this flaw.”
  • Red Hat Quay 3 quay/quay-rhel8
    affected: workaround, no fix available “You could always manually sanitize user-controlled input or Disable or restrict dynamic SVG/MathML usage where possible in order to mitigate this flaw.”
  • Red Hat Single Sign-On 7 org.keycloak-keycloak-parent
    affected: workaround, no fix planned “You could always manually sanitize user-controlled input or Disable or restrict dynamic SVG/MathML usage where possible in order to mitigate this flaw.”
  • Red Hat Ceph Storage 9.2 rhceph/rhceph-9-rhel10 1790843527
    fixed: vendor fix “You could always manually sanitize user-controlled input or Disable or restrict dynamic SVG/MathML usage where possible in order to mitigate this flaw.” RHSA-2026:86618
  • Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7 Server eap7-wildfly 7.3.18-3.GA_redhat_00001.1.el7eap, eap7-wildfly-modules 7.3.18-3.GA_redhat_00001.1.el7eap, eap7-wildfly-javadocs 7.3.18-3.GA_redhat_00001.1.el7eap, eap7-wildfly-java-jdk8 7.3.18-3.GA_redhat_00001.1.el7eap, eap7-wildfly-java-jdk11 7.3.18-3.GA_redhat_00001.1.el7eap
    fixed: vendor fix “You could always manually sanitize user-controlled input or Disable or restrict dynamic SVG/MathML usage where possible in order to mitigate this flaw.” RHSA-2026:33371
show 4 more
  • Red Hat Advanced Cluster Management for Kubernetes 2 rhacm2/volsync-rhel9, rhacm2/volsync-operator-bundle Red Hat Ceph Storage 9.2 rhceph/alloy-rhel10 1790774976, rhceph/grafana-rhel10 1790774121, rhceph/keepalived-rhel10 1790842990, rhceph/oauth2-proxy-rhel10 1790774021, rhceph/snmp-notifier-rhel10 1790773439, rhceph/rhceph-haproxy-rhel10 1790846345 Red Hat Enterprise Linux 8 firefox, grafana, thunderbird, grafana-loki, grafana-mssql, grafana-mysql, +11 more
    not affected: vulnerable code not present
  • Red Hat Enterprise Linux 9 polkit, firefox, grafana, firefox-x11, polkit-libs, thunderbird, +1 more Red Hat Enterprise Linux 10 firefox, grafana, thunderbird
    not affected: vulnerable code not in execute path
  • Red Hat JBoss Enterprise Application Platform 7 io.hawt-project Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7 Server eap7-undertow 2.0.41-8.SP9_redhat_00001.1.el7eap, eap7-apache-cxf 3.4.10-4.SP2_redhat_00004.1.el7eap, eap7-apache-cxf-rt 3.4.10-4.SP2_redhat_00004.1.el7eap, eap7-apache-cxf-tools 3.4.10-4.SP2_redhat_00004.1.el7eap, eap7-apache-cxf-services 3.4.10-4.SP2_redhat_00004.1.el7eap, eap7-jboss-server-migration 1.7.2-23.Final_redhat_00025.1.el7eap, +21 more Red Hat JBoss Enterprise Application Platform 8 io.hawt-project Red Hat JBoss Enterprise Application Platform Expansion Pack io.hawt-project
    not affected: vulnerable code not present
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-notebook-controller-rhel8, rhoai/odh-kf-notebook-controller-rhel8 Red Hat OpenStack Platform 16.2 qpid-dispatch-tools, qpid-dispatch-router
    not affected: vulnerable code not in execute path

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 ICSA-26-071-03 updated cvss 8.0

Siemens SIDIS Prime

  • Siemens SIDIS Prime < 4.0.800
    affected: fixed in V4.0.800

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
11mo ago

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 8.5 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 4.0 8.5 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD 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/compiler
>=21.0.0-next.0, <21.0.2
>=20.0.0-next.0, <20.3.15
>=19.0.0-next.0, <19.2.17
<=18.2.14
21.0.2
20.3.15
19.2.17

Affected products

  • angular angular
  • Siemens RUGGEDCOM RST2428P
  • Siemens SIDIS Prime

Classification

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

References

Sources

Fencer Intel 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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.