CVE-2026-119160 Details
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.
A stored cross-site scripting vulnerability has been identified in the Smart Post WordPress plugin, specifically in the Post Grid, Post Carousel, and Post Slider Gutenberg Blocks for Blog & News versions through 4.0.9. The issue arises from inadequate input sanitization and output escaping, allowing authenticated attackers with subscriber-level access or higher to inject arbitrary web scripts. These scripts execute when a user accesses the compromised page. Exploitation requires the victim page to include an Author Filter block along with a grid or live-filter block. The execution is triggered by a user clicking on the attacker's author entry in the dropdown, a standard filter interaction that does not require elevated privileges from the victim.
Users are advised to update the Smart Post WordPress plugin to version 4.0.10 or a newer patched version.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 31, 2026CISA-ADP
Assessed Nov 1, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-79 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Smart Post | <= 4.0.9 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 1, 2026 | CVE Modified | CISA-ADP |
| Oct 31, 2026 | New CVE Received | [email protected] |