CVE-2019-16781

In WordPress before 5.3.1, authenticated users with lower privileges (like contributors) can inject JavaScript code in the block editor, which is executed within the dashboard. It can lead to an admin opening the affected post in the editor leading to XSS.

CVSS v3 5.4 MEDIUM
CVSS v2.0 3.5 LOW

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

3.5^/10

CVSS v2.0 : LOW

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

Exploitability : 6.8 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pg4x-64rh-3c9v	Third Party Advisory
https://hackerone.com/reports/731301	Permissions Required Third Party Advisory
https://seclists.org/bugtraq/2020/Jan/8	Mailing List Third Party Advisory
https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/	Release Notes Third Party Advisory
https://wpvulndb.com/vulnerabilities/9976	Third Party Advisory
https://www.debian.org/security/2020/dsa-4599	Third Party Advisory
https://www.debian.org/security/2020/dsa-4677	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:debian:debian_linux:10.0:::::::*

History

No history.

Information

Published : 2019-12-26 17:15

Updated : 2024-02-28 17:28

NVD link : CVE-2019-16781

Mitre link : CVE-2019-16781

CVE.ORG link : CVE-2019-16781

JSON object : View

Products Affected

debian

debian_linux

wordpress

wordpress

CWE

CWE-79

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

{"id": "CVE-2019-16781", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 3.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 6.8, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.3}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 4.0, "exploitabilityScore": 1.3}]}, "published": "2019-12-26T17:15:13.613", "references": [{"url": "https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pg4x-64rh-3c9v", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://hackerone.com/reports/731301", "tags": ["Permissions Required", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://seclists.org/bugtraq/2020/Jan/8", "tags": ["Mailing List", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/", "tags": ["Release Notes", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://wpvulndb.com/vulnerabilities/9976", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://www.debian.org/security/2020/dsa-4599", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://www.debian.org/security/2020/dsa-4677", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-79"}]}, {"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "In WordPress before 5.3.1, authenticated users with lower privileges (like contributors) can inject JavaScript code in the block editor, which is executed within the dashboard. It can lead to an admin opening the affected post in the editor leading to XSS."}, {"lang": "es", "value": "En WordPress versiones anteriores a 5.3.1, los usuarios autenticados con privilegios m\u00e1s bajos (como los contribuyentes) pueden inyectar c\u00f3digo JavaScript en el editor de bloques, que es ejecutado dentro del panel. Puede conllevar a un administrador a abrir la publicaci\u00f3n afectada en el editor conllevando a un ataque de tipo XSS."}], "lastModified": "2023-01-19T03:04:10.037", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "16281685-1B1B-436A-9258-3E5078F27AF8", "versionEndExcluding": "5.3.1"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}