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CVE-2026-3600

MEDIUM

6.4

Description

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.

CVE Details

CVSS v3.1 Score6.4

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published4/8/2026

Last Modified4/8/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-79

References

https://plugins.trac.wordpress.org/browser/investi/tags/1.0.22/includes/widgets.php#L14(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/investi/tags/1.0.22/includes/widgets.php#L7(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/investi/trunk/includes/widgets.php#L14(security@wordfence.com)

https://plugins.trac.wordpress.org/browser/investi/trunk/includes/widgets.php#L7(security@wordfence.com)

https://plugins.trac.wordpress.org/changeset/3486937/(security@wordfence.com)

https://www.wordfence.com/threat-intel/vulnerabilities/id/51aa0d86-e623-46d1-9d37-a36b4825c071?source=cve(security@wordfence.com)

IOC Correlations

No correlations recorded

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