CVE-2026-3017Public exploitNetwork attack vector

Administrator object injection via unsafe shortcode deserialization

Published Apr 14, 2026 · Updated Apr 14, 2026

PHP object injection in ShapedPlugin LLC Smart Post Show 3.0.12 and earlier allows remote authenticated users to inject objects via shortcode import. The import_shortcodes() function deserializes attacker-controlled import data without restricting object creation. Administrator access is required, and impact depends on another installed plugin or theme providing a POP chain that can delete files, read data, or execute code.

CVSS severity7.2
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

PHP object injection in ShapedPlugin LLC Smart Post Show 3.0.12 and earlier allows remote authenticated users to inject objects via shortcode import. The import_shortcodes() function deserializes attacker-controlled import data without restricting object creation. Administrator access is required, and impact depends on another installed plugin or theme providing a POP chain that can delete files, read data, or execute code.

The record

CVE
CVE-2026-3017
Published
Apr 14, 2026
Updated
Apr 14, 2026
Vendor
ShapedPlugin LLC
Product
Smart Post Show
Classifications
CWE-502, CAPEC-586
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.0.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

ShapedPlugin LLC · Smart Post Showversion=0 <=3.0.12

Published CVSS scores

7.2WordfenceCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
CAPEC-586Object Injection

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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