{"api_version":"1","generated_at":"2026-07-23T22:43:20+00:00","cve":"CVE-2023-4995","urls":{"html":"https://cve.report/CVE-2023-4995","api":"https://cve.report/api/cve/CVE-2023-4995.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-4995","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-4995"},"summary":{"title":"Embed Calendly <= 3.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode","description":"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.","state":"PUBLISHED","assigner":"Wordfence","published_at":"2023-10-13 13:15:12","updated_at":"2026-04-08 19:18:41"},"problem_types":["CWE-79","CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.4","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","baseScore":5.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"}},{"version":"3.1","source":"security@wordfence.com","type":"Secondary","score":"6.4","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","baseScore":6.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"6.4","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","data":{"baseScore":6.4,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","version":"3.1"}}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/d1bf83df-7a1f-4572-9c8d-1013750d51d7?source=cve","name":"https://www.wordfence.com/threat-intel/vulnerabilities/id/d1bf83df-7a1f-4572-9c8d-1013750d51d7?source=cve","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"title":"Embed Calendly <= 3.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://plugins.trac.wordpress.org/browser/embed-calendly-scheduling/tags/3.6/includes/embed.php#L140","name":"https://plugins.trac.wordpress.org/browser/embed-calendly-scheduling/tags/3.6/includes/embed.php#L140","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Product"],"title":"403 Forbidden","mime":"text/html","httpstatus":"403","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-4995","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-4995","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"turn2honey","product":"EMC – Easily Embed Calendly Scheduling","version":"affected 3.6 semver","platforms":[]}],"timeline":[{"source":"CNA","time":"2023-09-15T00:00:00.000Z","lang":"en","value":"Discovered"},{"source":"CNA","time":"2023-10-02T00:00:00.000Z","lang":"en","value":"Vendor Notified"},{"source":"CNA","time":"2023-10-12T00:00:00.000Z","lang":"en","value":"Disclosed"}],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"István Márton","lang":"en"}],"nvd_cpes":[{"cve_year":"2023","cve_id":"4995","vulnerable":"1","versionEndIncluding":"3.6","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"embedcalendly","cpe5":"embed_calendly","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"wordpress","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2023","cve_id":"4995","cve":"CVE-2023-4995","epss":"0.000840000","percentile":"0.246160000","score_date":"2026-04-09","updated_at":"2026-04-10 00:07:03"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-02T07:44:53.784Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"tags":["x_transferred"],"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/d1bf83df-7a1f-4572-9c8d-1013750d51d7?source=cve"},{"tags":["x_transferred"],"url":"https://plugins.trac.wordpress.org/browser/embed-calendly-scheduling/tags/3.6/includes/embed.php#L140"}],"title":"CVE Program Container"},{"metrics":[{"other":{"content":{"id":"CVE-2023-4995","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2025-02-05T18:24:42.650643Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2025-02-05T19:16:25.305Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"EMC – Easily Embed Calendly Scheduling","vendor":"turn2honey","versions":[{"lessThanOrEqual":"3.6","status":"affected","version":"0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"István Márton"}],"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."}],"metrics":[{"cvssV3_1":{"baseScore":6.4,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-04-08T17:25:12.056Z","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","shortName":"Wordfence"},"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/d1bf83df-7a1f-4572-9c8d-1013750d51d7?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/embed-calendly-scheduling/tags/3.6/includes/embed.php#L140"}],"timeline":[{"lang":"en","time":"2023-09-15T00:00:00.000Z","value":"Discovered"},{"lang":"en","time":"2023-10-02T00:00:00.000Z","value":"Vendor Notified"},{"lang":"en","time":"2023-10-12T00:00:00.000Z","value":"Disclosed"}],"title":"Embed Calendly <= 3.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode"}},"cveMetadata":{"assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","assignerShortName":"Wordfence","cveId":"CVE-2023-4995","datePublished":"2023-10-13T12:44:49.343Z","dateReserved":"2023-09-15T12:36:31.242Z","dateUpdated":"2026-04-08T17:25:12.056Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2023-10-13 13:15:12","lastModifiedDate":"2026-04-08 19:18:41","problem_types":["CWE-79","CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"],"metrics":{"cvssMetricV31":[{"source":"security@wordfence.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","baseScore":6.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":3.1,"impactScore":2.7},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","baseScore":5.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.3,"impactScore":2.7}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:embedcalendly:embed_calendly:*:*:*:*:*:wordpress:*:*","versionEndIncluding":"3.6","matchCriteriaId":"659BD050-DA95-460F-9BB8-3A073D111179"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2023","CveId":"4995","Ordinal":"1","Title":"Embed Calendly <= 3.6 - Authenticated (Contributor+) Stored Cros","CVE":"CVE-2023-4995","Year":"2023"},"notes":[{"CveYear":"2023","CveId":"4995","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"Embed Calendly <= 3.6 - Authenticated (Contributor+) Stored Cros"}]}}}