CVE-2021-22540

Bad validation logic in the Dart SDK versions prior to 2.12.3 allow an attacker to use an XSS attack via DOM clobbering. The validation logic in dart:html for creating DOM nodes from text did not sanitize properly when it came across template tags.

CVSS v3 6.1 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://github.com/dart-lang/sdk/commit/ce5a1c2392debce967415d4c09359ff2555e3588	Patch Third Party Advisory
https://github.com/dart-lang/sdk/security/advisories/GHSA-3rfv-4jvg-9522	Broken Link

Configurations

Configuration 1 (hide)

cpe:2.3:a:dart:dart_software_development_kit:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-04-22 15:15

Updated : 2024-02-04 21:47

NVD link : CVE-2021-22540

Mitre link : CVE-2021-22540

CVE.ORG link : CVE-2021-22540

JSON object : View

Products Affected

dart

dart_software_development_kit

CWE

CWE-79

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

{"id": "CVE-2021-22540", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.8}]}, "published": "2021-04-22T15:15:07.930", "references": [{"url": "https://github.com/dart-lang/sdk/commit/ce5a1c2392debce967415d4c09359ff2555e3588", "tags": ["Patch", "Third Party Advisory"], "source": "cve-coordination@google.com"}, {"url": "https://github.com/dart-lang/sdk/security/advisories/GHSA-3rfv-4jvg-9522", "tags": ["Broken Link"], "source": "cve-coordination@google.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-79"}]}, {"type": "Secondary", "source": "cve-coordination@google.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "Bad validation logic in the Dart SDK versions prior to 2.12.3 allow an attacker to use an XSS attack via DOM clobbering. The validation logic in dart:html for creating DOM nodes from text did not sanitize properly when it came across template tags."}, {"lang": "es", "value": "Una mala l\u00f3gica de comprobaci\u00f3n en el Dart SDK versiones anteriores a 2.12.3 permite a un atacante usar un ataque de tipo XSS por medio de DOM clobbering. La l\u00f3gica de comprobaci\u00f3n en dart: html para crear nodos DOM a partir de texto no se saneaban apropiadamente cuando se encontraba con etiquetas de plantilla"}], "lastModified": "2021-04-26T20:20:32.060", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:dart:dart_software_development_kit:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E9ECB219-E894-4499-9918-2199CA9532EA", "versionEndExcluding": "2.12.3"}], "operator": "OR"}]}], "sourceIdentifier": "cve-coordination@google.com"}