safistudio Bookero.pl Plugin up to 2.2 Shortcode bookero_products hide_products/filter_products cross site scripting

Summaryinfo

A vulnerability has been found in safistudio Bookero.pl Plugin up to 2.2 and classified as problematic. The affected element is the function bookero_products of the component Shortcode Handler. Performing a manipulation of the argument hide_products/filter_products results in cross site scripting. This vulnerability was named CVE-2026-6910. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic has been found in safistudio Bookero.pl Plugin up to 2.2. This affects the function bookero_products of the component Shortcode Handler. The manipulation of the argument hide_products/filter_products with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

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.

It is possible to read the advisory at wordfence.com. This vulnerability is uniquely identified as CVE-2026-6910 since 04/23/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• safistudio

Name

• Bookero.pl Plugin

Version

• 2.0
• 2.1
• 2.2

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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Entryinfo

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