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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-6910
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-09 08:16:49 UTC
Updated2026-07-09 16:19:45 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 6.4 MEDIUM from [email protected]

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

EPSS: 0.002120000 probability, percentile 0.115070000 (date 2026-07-13)

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Safistudio Bookero.pl System Rezerwacji Online affected 2.2 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/bookeropl/trunk/libraries/bookero-front.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/bookeropl/trunk/libraries/bookero-front.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/bookeropl/tags/2.1/libraries/bookero-front.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/fd0e6ca6-f6a7-4e81-aea1-3b59d... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/bookeropl/tags/2.1/libraries/bookero-front.php [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: zaim (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-07-08T17:50:42.000ZDisclosed

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