Smart Post Show – Post Grid, Post Carousel & Slider, and List Category Posts: Code execution
Smart Post Show – Post Grid, Post Carousel & Slider, and List Category Posts is affected by code execution. Exploitation requires at least administrator-level access. Successful exploitation can run attacker-controlled code in the WordPress hosting account. The published affected range is <= 3.0.12.
- Component
- Smart Post Show – Post Grid, Post Carousel & Slider, and List Category Posts
- Affected
- <= 3.0.12
- Safe version
> 3.0.12- Published
- Apr 14, 2026
This CVE was published Apr 14, 2026 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update Smart Post Show – Post Grid, Post Carousel & Slider, and List Category Posts to a release after 3.0.12, or disable and remove it until a fixed version is available.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical 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.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H