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    1 vulnerability by creavi

    CVE-2026-1856 (GCVE-0-2026-1856)

    Vulnerability from cvelistv5 – Published: 2026-06-19 04:31 – Updated: 2026-06-22 18:14
    VLAI
    Title
    Appointment Booking Calendar <= 1.4.4 - Authenticated (Author+) Stored Cross-Site Scripting via Custom Booking Field Label
    Summary
    The Appointment Booking Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via custom booking field labels in all versions up to, and including, 1.4.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, 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
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
    Assigner
    References
    Impacted products
    Vendor Product Version
    creavi Creavi Appointment Booking Calendar Affected: 0 , ≤ 1.4.4 (semver)
    		Create a notification for this product.
    Credits
    Athiwat Tiprasaharn Powpy
    Show details on NVD website
    To clipboard 

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                "id": "CVE-2026-1856",
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                "role": "CISA Coordinator",
                "timestamp": "2026-06-22T17:25:12.290933Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2026-06-22T18:14:01.040Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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        "title": "CISA ADP Vulnrichment"
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              "versionType": "semver"
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      "credits": [
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          "type": "finder",
          "value": "Athiwat Tiprasaharn"
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          "value": "Powpy"
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          "value": "The Appointment Booking Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via custom booking field labels in all versions up to, and including, 1.4.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."
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      "references": [
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          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/2618ccde-2bb0-4cd4-b415-68a671507709?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/creavi-booking-service/trunk/assets/js/booking.js#L379"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/creavi-booking-service/tags/1.1.0/assets/js/booking.js#L379"
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