CVE-2026-96039

high

Description

The BA Book Everything plugin for WordPress is vulnerable to Stored Cross-Site Scripting via first_name Parameter in all versions up to, and including, 1.8.27 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. An unauthenticated attacker can obtain the valid order_id, order_num, and order_hash credentials required to reach the vulnerable action_to_pay() handler simply by placing a guest booking through the public [babe-booking-form] shortcode, making the full exploit chain reachable without any account.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/dd118053-b0f7-4fce-aa00-b0bb40778f21?source=cve

https://plugins.trac.wordpress.org/changeset?reponame=&new=3709588%40ba-book-everything%2Ftrunk&old=3640320%40ba-book-everything%2Ftrunk

https://plugins.trac.wordpress.org/browser/ba-book-everything/tags/1.8.27/includes/class-babe-order.php#L2653

https://plugins.trac.wordpress.org/browser/ba-book-everything/tags/1.8.27/includes/class-babe-order.php#L2599

https://plugins.trac.wordpress.org/browser/ba-book-everything/tags/1.8.27/includes/class-babe-order.php#L2522

https://plugins.trac.wordpress.org/browser/ba-book-everything/tags/1.8.27/includes/class-babe-order.php#L2405

https://plugins.trac.wordpress.org/browser/ba-book-everything/tags/1.8.27/includes/class-babe-html.php#L4300

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-86546

Details

Source: Mitre, NVD

Published: 2026-09-25

Updated: 2026-09-25

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 7.2

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

Severity: High

EPSS

EPSS: 0.00241