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
Source GCVE Database
Not known to be exploited · CVSS 6.4 Medium.
Data as of 31 Oct 2026, 10:37 UTC
Thin evidence
One scorer or none| CNA (Wordfence) | CVSS 3.1 | 6.4 |
|---|
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 31 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| shapedpluginSmart Post – Post Grid, Post Carousel, Post Slider Gutenberg Blocks for Blog & News | Affected
| Fixed in– |
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.
References
- nvd.nist.gov/vuln/detail/CVE-2026-119160 (opens in a new tab)
- plugins.trac.wordpress.org/browser/post-carousel/tags/4.0.8/blocks/assets/js/script.js (opens in a new tab)
- plugins.trac.wordpress.org/browser/post-carousel/tags/4.0.8/blocks/includes/class-template-part.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/post-carousel/tags/4.0.8/blocks/includes/class-template-part.php (opens in a new tab)
- plugins.trac.wordpress.org/changeset/3775298/post-carousel (opens in a new tab)
- plugins.trac.wordpress.org/changeset/3775298/post-carousel/trunk/blocks/assets/js/script.js (opens in a new tab)
- wordfence.com/threat-intel/vulnerabilities/id/a5612c16-9629-4869-8ec1-8fba788b7d7c?source=cve (opens in a new tab)