BA Book Everything <= 1.8.27 - Unauthenticated Stored Cross-Site Scripting via first_name Parameter

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-96039
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-25 07:16:56 UTC
Updated2026-09-25 14:17:25 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 7.2 HIGH from [email protected]

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

EPSS: 0.002410000 probability, percentile 0.136890000 (date 2026-09-27)

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Bookingalgorithms BA Book Everything affected 1.8.27 semver Not specified

References

ReferenceSourceLinkTags
www.wordfence.com/threat-intel/vulnerabilities/id/dd118053-b0f7-4fce-aa00-b0bb4... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/ba-book-everything/tags/1.8.27/includes/class-babe-or... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/ba-book-everything/tags/1.8.27/includes/class-babe-ht... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/ba-book-everything/tags/1.8.27/includes/class-babe-or... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/ba-book-everything/tags/1.8.27/includes/class-babe-or... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/ba-book-everything/tags/1.8.27/includes/class-babe-or... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Adrien Brunner (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-09-22T18:15:37.000ZVendor Notified
CNA2026-09-24T18:07:26.000ZDisclosed

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