Vulnerability · Published Apr 14, 2026 · Assigned by Wordfence
CVE-2026-3017Smart Post Show – Post Grid, Post Carousel & Slider, and List Category Posts <= 3.0.12 - Authenticated (Administrator+) PHP Object Injection
High 7.2
In plain English
A high-severity unsafe deserialization in Smart Post Show – Post Grid, Post Carousel & Slider, and List Category Posts from shapedplugin. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| shapedplugin | Smart Post Show – Post Grid, Post Carousel & Slider, and List Category Posts | 0 – through 3.0.12 |
Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H