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7.2
Smart Post Show Plugin for WordPress Exposes Data and Files to Attackers
CVE-2026-3017
Summary
The Smart Post Show plugin for WordPress versions 3.0.12 and below has a security flaw that could allow attackers with administrator access to access sensitive data or delete files if they have another malicious plugin or theme installed on the site. This is a risk for any WordPress site using this plugin, and it's recommended to update to a newer version as soon as possible. Website owners should also review and remove any unnecessary plugins and themes to minimize the risk of exploitation.
Original title
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 deserial...
Original 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.
nvd CVSS3.1
7.2
Vulnerability type
CWE-502
Deserialization of Untrusted Data
Published: 14 Apr 2026 · Updated: 14 Apr 2026 · First seen: 14 Apr 2026