CVE-2026-5717
VI: Include Post By <= 0.4.200706 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'class_container' Shortcode Attribute
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
8th
The VI: Include Post By plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'class_container' attribute of the 'include-post-by-cat' shortcode in all versions up to, and including, 0.4.200706 due to insufficient input sanitization and output escaping on user supplied attributes. 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.
| CWE | CWE-79 |
| Vendor | knighthawk |
| Product | vi: include post by |
| Published | Apr 15, 2026 |
| Last Updated | Apr 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
knighthawk / VI: Include Post By
0 ≤ 0.4.200706
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/b3e95dc2-0f50-4009-9cc0-a02f9977ce58?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/vi-include-post-by/tags/0.4.200706/vi_include_post_by.php#L809 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/vi-include-post-by/trunk/vi_include_post_by.php#L809
Credits
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