CVE-2026-93655CWE-79cross-site-scripting

CVE-2026-93655

Medium · published September 22, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
29.5
In the wild
Unconfirmed
What it is

The Booking Calendar plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'wpbc_auto_fill' parameter in all versions up to, and including, 11.8.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00368 · 29.5th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-22T10:16Z
References (5)
https://plugins.trac.wordpress.org/browser/booking/tags/11.8.3/_dist/all/_src/wpbc_all.js#L3370 · [email protected]https://plugins.trac.wordpress.org/browser/booking/tags/11.8.3/_dist/all/_src/wpbc_all.js#L3396 · [email protected]https://plugins.trac.wordpress.org/browser/booking/tags/11.8.3/js/wpbc_time-selector.js#L87 · [email protected]https://plugins.trac.wordpress.org/changeset?reponame=&old=3703002%40booking&new=3703002%40booking · [email protected]https://www.wordfence.com/threat-intel/vulnerabilities/id/37fdbbc3-6151-4962-90fa-a621d01a5eb2?source=cve · [email protected]
EPSS history
Timeline
  • 23 SEP 03:49Z
    EPSS moved — → 0%
    epss
  • 22 SEP 05:30Z
    Booking Calendar <= 11.8.3 - Reflected Cross-Site Scripting via 'wpbc_auto_fill' Parameter
    cvelistv5