EUVD-2026-22221
GHSA-vw96-fcx4-fx55
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
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.
AnalysisAI
PHP object injection in Smart Post Show WordPress plugin versions ≤3.0.12 allows administrators to deserialize untrusted input via the import_shortcodes() function. While no POP chain exists in the plugin itself (making direct exploitation impossible), the vulnerability becomes critical if paired with another plugin/theme containing exploitable gadget chains, potentially enabling file deletion, data exfiltration, or remote code execution. …
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RemediationAI
Within 24 hours: Disable the Smart Post Show plugin or restrict administrator access to import_shortcodes functionality via code modification if disabling is not feasible. Audit all installed WordPress plugins and themes for known PHP object injection gadget chains using a security scanner. …
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External POC / Exploit Code
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