CVE-2026-119160
Smart Post <= 4.0.9 - Authenticated (Subscriber+) Stored Cross-Site Scripting via User display_name via Author Filter block
- State
- Published
- Severity
- 6.4 Medium
- Published
- Oct 31, 2026
- Updated
- Nov 1, 2026
- Reserved
- Oct 29, 2026
Description
The Smart Post – Post Grid, Post Carousel, Post Slider Gutenberg Blocks for Blog & News plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'display_name' parameter in all versions up to, and including, 4.0.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the victim page to contain an Author Filter block alongside a grid or live-filter block, and execution is triggered by a visitor clicking the attacker's author entry in the dropdown — a standard filter interaction requiring no elevated privileges from the victim.
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
Affected Products
| Product | Versions |
|---|---|
Smart Post – Post Grid, Post Carousel, Post Slider Gutenberg Blocks for Blog & Newsshapedplugin |
|
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a5612c16-9629-4869-8ec1-8fba788b7d7c?source=cve
- https://plugins.trac.wordpress.org/browser/post-carousel/tags/4.0.8/blocks/includes/class-template-part.php#L1146
- https://plugins.trac.wordpress.org/browser/post-carousel/tags/4.0.8/blocks/assets/js/script.js#L1744
- https://plugins.trac.wordpress.org/browser/post-carousel/tags/4.0.8/blocks/includes/class-template-part.php#L1130
- https://plugins.trac.wordpress.org/changeset/3775298/post-carousel
- https://plugins.trac.wordpress.org/changeset/3775298/post-carousel/trunk/blocks/assets/js/script.js
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