PT-2026-56733 · Safistudio · Bookero.Pl – System Rezerwacji Online

Zaim · Published 2026-07-09 · Updated 2026-07-09 · CVE-2026-6910

Mitre

CVSS v3.1

6.4

Medium

Base vector

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

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.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-6910

Affected Products

Bookero.Pl – System Rezerwacji Online

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-6910 · Security Note
• https://wordfence.com/threat-intel/vulnerabilities/id/fd0e6ca6-f6a7-4e81-aea1-3b59de0173d6?source=cve · Note
• https://plugins.trac.wordpress.org/browser/bookeropl/tags/2.1/libraries/bookero-front.php#L174 · Note
• https://plugins.trac.wordpress.org/browser/bookeropl/trunk/libraries/bookero-front.php#L173 · Note
• https://plugins.trac.wordpress.org/browser/bookeropl/trunk/libraries/bookero-front.php#L174 · Note
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3524452%40bookeropl&new=3524452%40bookeropl · Note
• https://plugins.trac.wordpress.org/browser/bookeropl/tags/2.1/libraries/bookero-front.php#L173 · Note