CVE-2023-4995

The Embed Calendly plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'calendly' shortcode in versions up to, and including, 3.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVSS v3 5.4 MEDIUM

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

References

Link	Resource
https://plugins.trac.wordpress.org/browser/embed-calendly-scheduling/tags/3.6/includes/embed.php#L140	Product
https://www.wordfence.com/threat-intel/vulnerabilities/id/d1bf83df-7a1f-4572-9c8d-1013750d51d7?source=cve	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:embedcalendly:embed_calendly:*:*:*:*:*:wordpress:*:*

History

No history.

Information

Published : 2023-10-13 13:15

Updated : 2023-11-07 04:23

NVD link : CVE-2023-4995

Mitre link : CVE-2023-4995

CVE.ORG link : CVE-2023-4995

JSON object : View

Products Affected

embedcalendly

embed_calendly

CWE

No CWE.

{"id": "CVE-2023-4995", "cveTags": [], "metrics": {"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@wordfence.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 3.1}]}, "published": "2023-10-13T13:15:12.607", "references": [{"url": "https://plugins.trac.wordpress.org/browser/embed-calendly-scheduling/tags/3.6/includes/embed.php#L140", "tags": ["Product"], "source": "security@wordfence.com"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/d1bf83df-7a1f-4572-9c8d-1013750d51d7?source=cve", "tags": ["Third Party Advisory"], "source": "security@wordfence.com"}], "vulnStatus": "Modified", "descriptions": [{"lang": "en", "value": "The Embed Calendly plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'calendly' shortcode in versions up to, and including, 3.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."}, {"lang": "es", "value": "El complemento Embed Calendly para WordPress es vulnerable a Cross-Site Scripting (XSS) Almacenado a trav\u00e9s del c\u00f3digo abreviado 'calendly' en versiones hasta la 3.6 incluida debido a una sanitizaci\u00f3n de entrada y a un escape de la salida en los atributos proporcionados por el usuario insuficientes. Esto hace posible que atacantes autenticados con permisos de nivel de colaborador y superiores inyecten scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina inyectada."}], "lastModified": "2023-11-07T04:23:17.390", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:embedcalendly:embed_calendly:*:*:*:*:*:wordpress:*:*", "vulnerable": true, "matchCriteriaId": "659BD050-DA95-460F-9BB8-3A073D111179", "versionEndIncluding": "3.6"}], "operator": "OR"}]}], "sourceIdentifier": "security@wordfence.com"}