GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2025-66412 (GCVE-0-2025-66412)

Vulnerability from cvelistv5 – Published: 2025-12-01 22:35 – Updated: 2026-06-02 13:00
VLAI
Title
Angular Stored XSS Vulnerability via SVG Animation, SVG URL and MathML Attributes
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.
Severity
8.5 (High)
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
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-02 14:12 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version CPE status
angular angular Affected: >= 21.0.0-next.0 < 21.0.2
Affected: >= 20.0.0-next.0 < 20.3.15
Affected: >= 19.0.0-next.0 < 19.2.17
Affected: <= 18.2.14
guessed Create a notification for this product.
Siemens RUGGEDCOM RST2428P Affected: 0 , < V4.0 (custom)
guessed Create a notification for this product.
Siemens SIDIS Prime Affected: 0 , < V4.0.800 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-66412",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-02T14:12:58.051369Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-12-02T14:13:07.801Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "RUGGEDCOM RST2428P",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V4.0",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIDIS Prime",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V4.0.800",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-02T13:00:31.963Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-485750.html"
          },
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-253495.html"
          }
        ],
        "x_adpType": "supplier"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "angular",
          "vendor": "angular",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 21.0.0-next.0 \u003c 21.0.2"
            },
            {
              "status": "affected",
              "version": "\u003e= 20.0.0-next.0 \u003c 20.3.15"
            },
            {
              "status": "affected",
              "version": "\u003e= 19.0.0-next.0 \u003c 19.2.17"
            },
            {
              "status": "affected",
              "version": "\u003c= 18.2.14"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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\u0027s internal security schema is incomplete, allowing attackers to bypass Angular\u0027s 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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "ACTIVE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-01T22:35:59.211Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/angular/angular/security/advisories/GHSA-v4hv-rgfq-gp49",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/angular/angular/security/advisories/GHSA-v4hv-rgfq-gp49"
        },
        {
          "name": "https://github.com/angular/angular/commit/1c6b0704fb63d051fab8acff84d076abfbc4893a",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/angular/angular/commit/1c6b0704fb63d051fab8acff84d076abfbc4893a"
        }
      ],
      "source": {
        "advisory": "GHSA-v4hv-rgfq-gp49",
        "discovery": "UNKNOWN"
      },
      "title": "Angular Stored XSS Vulnerability via SVG Animation, SVG URL and MathML Attributes"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-66412",
    "datePublished": "2025-12-01T22:35:59.211Z",
    "dateReserved": "2025-11-28T23:33:56.366Z",
    "dateUpdated": "2026-06-02T13:00:31.963Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-66412",
      "date": "2026-09-15",
      "epss": "0.00413",
      "percentile": "0.34841"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-66412\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2025-12-01T23:15:53.890\",\"lastModified\":\"2026-06-17T09:56:47.677\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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\u0027s internal security schema is incomplete, allowing attackers to bypass Angular\u0027s 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.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"angular\",\"product\":\"angular\",\"versions\":[{\"version\":\"\u003e= 21.0.0-next.0 \u003c 21.0.2\",\"status\":\"affected\"},{\"version\":\"\u003e= 20.0.0-next.0 \u003c 20.3.15\",\"status\":\"affected\"},{\"version\":\"\u003e= 19.0.0-next.0 \u003c 19.2.17\",\"status\":\"affected\"},{\"version\":\"\u003c= 18.2.14\",\"status\":\"affected\"}]}]},{\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\",\"affectedData\":[{\"vendor\":\"Siemens\",\"product\":\"RUGGEDCOM RST2428P\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V4.0\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIDIS Prime\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V4.0.800\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"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\",\"baseScore\":8.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"ACTIVE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N\",\"baseScore\":5.4,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.3,\"impactScore\":2.7}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2025-12-02T14:12:58.051369Z\",\"id\":\"CVE-2025-66412\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:*\",\"versionEndIncluding\":\"18.2.14\",\"matchCriteriaId\":\"B0857B9D-DDD4-42CC-B026-AF3B4081BD14\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:*\",\"versionStartIncluding\":\"19.0.0\",\"versionEndExcluding\":\"19.2.17\",\"matchCriteriaId\":\"510711AC-A2E0-42FA-9A67-B77FC0C7FE2A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:*\",\"versionStartIncluding\":\"20.0.0\",\"versionEndExcluding\":\"20.3.15\",\"matchCriteriaId\":\"ADEEF44B-4624-444D-867A-D75B192FC413\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:angular:angular:*:*:*:*:*:node.js:*:*\",\"versionStartIncluding\":\"21.0.0\",\"versionEndExcluding\":\"21.0.2\",\"matchCriteriaId\":\"4D7E1957-7450-48AA-8EEB-62D60EE9DABE\"}]}]}],\"references\":[{\"url\":\"https://github.com/angular/angular/commit/1c6b0704fb63d051fab8acff84d076abfbc4893a\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/angular/angular/security/advisories/GHSA-v4hv-rgfq-gp49\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-253495.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-485750.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-06-30T02:47:11+00:00",
      "cve": "CVE-2025-66412",
      "id": "CVE-2025-66412",
      "initial_release_date": "2025-12-01T22:35:59.211000+00:00",
      "product_status:fixed": "6",
      "product_status:known_affected": "159",
      "product_status:known_not_affected": "78",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "angular: Angular Stored XSS Vulnerability via SVG Animation, SVG URL and MathML Attributes",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-66412.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"affected\": [{\"vendor\": \"Siemens\", \"product\": \"RUGGEDCOM RST2428P\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"V4.0\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIDIS Prime\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"V4.0.800\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}], \"x_adpType\": \"supplier\", \"references\": [{\"url\": \"https://cert-portal.siemens.com/productcert/html/ssa-485750.html\"}, {\"url\": \"https://cert-portal.siemens.com/productcert/html/ssa-253495.html\"}], \"providerMetadata\": {\"orgId\": \"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\", \"shortName\": \"siemens-SADP\", \"dateUpdated\": \"2026-06-02T13:00:31.963Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-66412\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-12-02T14:12:58.051369Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-12-02T14:13:03.595Z\"}}], \"cna\": {\"title\": \"Angular Stored XSS Vulnerability via SVG Animation, SVG URL and MathML Attributes\", \"source\": {\"advisory\": \"GHSA-v4hv-rgfq-gp49\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 8.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"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\", \"userInteraction\": \"ACTIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"LOW\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"angular\", \"product\": \"angular\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 21.0.0-next.0 \u003c 21.0.2\"}, {\"status\": \"affected\", \"version\": \"\u003e= 20.0.0-next.0 \u003c 20.3.15\"}, {\"status\": \"affected\", \"version\": \"\u003e= 19.0.0-next.0 \u003c 19.2.17\"}, {\"status\": \"affected\", \"version\": \"\u003c= 18.2.14\"}]}], \"references\": [{\"url\": \"https://github.com/angular/angular/security/advisories/GHSA-v4hv-rgfq-gp49\", \"name\": \"https://github.com/angular/angular/security/advisories/GHSA-v4hv-rgfq-gp49\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/angular/angular/commit/1c6b0704fb63d051fab8acff84d076abfbc4893a\", \"name\": \"https://github.com/angular/angular/commit/1c6b0704fb63d051fab8acff84d076abfbc4893a\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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\u0027s internal security schema is incomplete, allowing attackers to bypass Angular\u0027s 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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2025-12-01T22:35:59.211Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-66412\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-02T13:00:31.963Z\", \"dateReserved\": \"2025-11-28T23:33:56.366Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2025-12-01T22:35:59.211Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.