CVE-2021-26539

Apostrophe Technologies sanitize-html before 2.3.1 does not properly handle internationalized domain name (IDN) which could allow an attacker to bypass hostname whitelist validation set by the "allowedIframeHostnames" option.

CVSS v3 5.3 MEDIUM
CVSS v2.0 5.0 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://advisory.checkmarx.net/advisory/CX-2021-4308	Exploit Third Party Advisory
https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md#231-2021-01-22	Release Notes Third Party Advisory
https://github.com/apostrophecms/sanitize-html/pull/458	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apostrophecms:sanitize-html:*:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2021-02-08 17:15

Updated : 2024-02-28 18:08

NVD link : CVE-2021-26539

Mitre link : CVE-2021-26539

CVE.ORG link : CVE-2021-26539

JSON object : View

Products Affected

apostrophecms

sanitize-html

CWE

NVD-CWE-noinfo

{"id": "CVE-2021-26539", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "published": "2021-02-08T17:15:13.673", "references": [{"url": "https://advisory.checkmarx.net/advisory/CX-2021-4308", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md#231-2021-01-22", "tags": ["Release Notes", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/apostrophecms/sanitize-html/pull/458", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "Apostrophe Technologies sanitize-html before 2.3.1 does not properly handle internationalized domain name (IDN) which could allow an attacker to bypass hostname whitelist validation set by the \"allowedIframeHostnames\" option."}, {"lang": "es", "value": "Apostrophe Technologies sanitize-html antes de 2.3.1, no maneja apropiadamente los nombres de dominio internacionalizados (IDN), lo que podr\u00eda permitir a un atacante omitir la validaci\u00f3n de la lista blanca de nombres de host establecida por la opci\u00f3n \"allowedIframeHostnames\""}], "lastModified": "2022-04-26T15:24:43.517", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apostrophecms:sanitize-html:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "6A1A1822-184A-4E07-AB5C-C15089BD3EED", "versionEndExcluding": "2.3.1"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}