Search criteria ⓘ Use this form to refine search results.
Full-text search supports keyword queries with ranking and filtering.
You can combine vendor, product, and sources to narrow results.
Enable “Apply ordering” to sort by date instead of relevance.

1 vulnerability by embedcalendly

CVE-2023-4995 (GCVE-0-2023-4995)

Vulnerability from cvelistv5 – Published: 2023-10-13 12:44 – Updated: 2026-04-08 17:25
VLAI?
Title
Embed Calendly <= 3.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
Summary
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.
Severity ?
6.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version
turn2honey EMC – Easily Embed Calendly Scheduling Affected: 0 , ≤ 3.6 (semver)
Create a notification for this product.
Credits
István Márton
Show details on NVD website
To clipboard 

{
  "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 \u2013 Easily Embed Calendly Scheduling",
          "vendor": "turn2honey",
          "versions": [
            {
              "lessThanOrEqual": "3.6",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Istv\u00e1n M\u00e1rton"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Embed Calendly plugin for WordPress is vulnerable to Stored Cross-Site Scripting via \u0027calendly\u0027 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 (\u0027Cross-site Scripting\u0027)",
              "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 \u003c= 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"
}