PT-2026-31076 · Investi · Investi

Published 2026-04-08 · Updated 2026-04-08 · CVE-2026-3600

NVD

CVSS v3.1

6.4

Medium

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

The Investi plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'investi-announcements-accordion' shortcode's 'maximum-num-years' attribute in all versions up to, and including, 1.0.26. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes. Specifically, the 'maximum-num-years' attribute value is read directly from shortcode attributes and interpolated into a double-quoted HTML attribute without any escaping (no esc attr(), htmlspecialchars(), or similar). This makes it possible for authenticated attackers, with Contributor-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-2026-3600

Affected Products

Investi

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-3600 · Security Note
• https://plugins.trac.wordpress.org/browser/investi/trunk/includes/widgets.php#L7 · Note
• https://plugins.trac.wordpress.org/changeset/3486937 · Note
• https://plugins.trac.wordpress.org/browser/investi/trunk/includes/widgets.php#L14 · Note
• https://plugins.trac.wordpress.org/browser/investi/tags/1.0.22/includes/widgets.php#L14 · Note
• https://plugins.trac.wordpress.org/browser/investi/tags/1.0.22/includes/widgets.php#L7 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/51aa0d86-e623-46d1-9d37-a36b4825c071?source=cve · Note