Bookero.pl <= 2.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

Wordfence Intelligence   >   Vulnerability Database   >   Bookero.pl <= 2.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
6.4
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2026-6910
CVSS 6.4 (Medium)
Publicly Published July 8, 2026
Last Updated July 9, 2026
Researcher zaim

Description

The Bookero.pl – system rezerwacji online plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `bookero_products` shortcode's `hide_products` (and `filter_products`) attributes in versions up to and including 2.2. This is due to insufficient input sanitization and output escaping in the `bookero_products()` function — the raw attribute value is concatenated directly into an inline `<script>` block without any escaping. This makes it possible for authenticated attackers with contributor-level access and above to inject arbitrary web scripts into pages that will execute whenever a user accesses the injected page.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

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Vulnerability Details for Bookero.pl – system rezerwacji online

Bookero.pl – system rezerwacji online

Software Type Plugin
Software Slug bookeropl (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.3, or a newer patched version
Affected Version
  • <= 2.2
Patched Version
  • 2.3

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