PT-2026-54611 · Figureone · Insert Pages

Athiwat Tiprasaharn + 1 · Published 2026-07-02 · Updated 2026-07-02 · CVE-2026-10089

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 Insert Pages plugin for WordPress is vulnerable to Stored Cross-Site Scripting via post custom field keys (meta key names) in all versions up to, and including, 3.11.4. This is due to insufficient output escaping in the the meta() function: while the custom field VALUE is sanitized with wp kses post(), the custom field KEY ($key) is interpolated into the rendered HTML (lines 1786-1791) and echoed (line 1806) without any escaping when an inserted page is rendered with the [insert page='ID' display='all'] shortcode. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-10089

Affected Products

Insert Pages

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-10089 · Security Note
• https://plugins.trac.wordpress.org/browser/insert-pages/tags/3.11.3/insert-pages.php#L1789 · Note
• https://plugins.trac.wordpress.org/browser/insert-pages/tags/3.11.4/insert-pages.php#L1771 · Note
• https://plugins.trac.wordpress.org/browser/insert-pages/tags/3.11.3/insert-pages.php#L768 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/a4246181-d331-46b0-ad48-e2ece11b2f5f?source=cve · Note
• https://plugins.trac.wordpress.org/browser/insert-pages/tags/3.11.3/insert-pages.php#L1771 · Note
• https://plugins.trac.wordpress.org/browser/insert-pages/tags/3.11.4/insert-pages.php#L1789 · Note
• https://plugins.trac.wordpress.org/changeset/3579298 · Note
• https://plugins.trac.wordpress.org/browser/insert-pages/tags/3.11.4/insert-pages.php#L768 · Note