{"cve":"CVE-2026-6910","nvd":{"published":"2026-07-09T08:16:49.210","modified":"2026-07-09T16:19:45.567","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","score":6.4},"cwes":["CWE-79"],"references":["https://plugins.trac.wordpress.org/browser/bookeropl/tags/2.1/libraries/bookero-front.php#L173","https://plugins.trac.wordpress.org/browser/bookeropl/tags/2.1/libraries/bookero-front.php#L174","https://plugins.trac.wordpress.org/browser/bookeropl/trunk/libraries/bookero-front.php#L173","https://plugins.trac.wordpress.org/browser/bookeropl/trunk/libraries/bookero-front.php#L174","https://plugins.trac.wordpress.org/changeset?reponame=&old=3524452%40bookeropl&new=3524452%40bookeropl"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:44:02.134301115+00:00"},"epss":{"cve":"CVE-2026-6910","score":0.00349,"percentile":0.28546,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}