CVE-2026-5717
VI: Include Post By <= 0.4.200706 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'class_container' Shortcode Attribute
- State
- Published
- Severity
- 6.4 Medium
- Published
- Apr 15, 2026
- Updated
- Apr 15, 2026
- Reserved
- Apr 6, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N | Wordfence |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
VI: Include Post Byknighthawk |
|
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/b3e95dc2-0f50-4009-9cc0-a02f9977ce58?source=cve
- https://plugins.trac.wordpress.org/browser/vi-include-post-by/tags/0.4.200706/vi_include_post_by.php#L809
- https://plugins.trac.wordpress.org/browser/vi-include-post-by/trunk/vi_include_post_by.php#L809
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