CVE-2026-3017 Details
Description
The Smart Post Show – Post Grid, Post Carousel & Slider, and List Category Posts plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.0.12 via deserialization of untrusted input in the import_shortcodes() function. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
A PHP Object Injection vulnerability has been identified in the Smart Post Show WordPress plugin, specifically in the Post Grid, Post Carousel & Slider, and List Category Posts versions through 3.0.12. The vulnerability arises from the deserialization of untrusted input in the import_shortcodes() function, allowing authenticated attackers with Administrator-level access to inject PHP objects. While the vulnerable plugin itself does not have a known PHP Object Injection chain, the vulnerability could be exploited if another plugin or theme with such a chain is installed, potentially enabling the attacker to delete files, access sensitive information, or execute code, depending on the nature of the PHP Object Injection chain.
Users are advised to update the Smart Post Show WordPress plugin to version 3.0.13 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 Apr 14, 2026CISA-ADP
Assessed Apr 14, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-502 | Deserialization of Untrusted Data | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Smart Post Show | All versions |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 14, 2026 | New CVE Received | [email protected] |