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{
"id": "CVE-2023-4283",
"sourceIdentifier": "security@wordfence.com",
"published": "2023-08-10T12:15:12.440",
"lastModified": "2023-08-10T12:43:50.693",
"vulnStatus": "Awaiting Analysis",
"descriptions": [
{
"lang": "en",
"value": "The EmbedPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'embedpress_calendar' shortcode in versions up to, and including, 3.8.2 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."
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "security@wordfence.com",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "CHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"availabilityImpact": "NONE",
"baseScore": 6.4,
"baseSeverity": "MEDIUM"
},
"exploitabilityScore": 3.1,
"impactScore": 2.7
}
]
},
"weaknesses": [
{
"source": "security@wordfence.com",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-79"
}
]
}
],
"references": [
{
"url": "https://plugins.trac.wordpress.org/browser/embedpress/tags/3.8.2/EmbedPress/ThirdParty/Googlecalendar/Embedpress_Google_Helper.php#L522",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/2950211/embedpress#file18",
"source": "security@wordfence.com"
},
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b340eda1-e9d2-40b6-89f9-41d995ce3555?source=cve",
"source": "security@wordfence.com"
}
]
}