PHP Object Injection Vulnerability in Weaver Show Posts Plugin for WordPress
CVE-2023-3360

3.3LOW

Key Information:

Vendor

WordPress
Status
Weaver Show Posts
Vendor
CVE Published:
2 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2023-3360?

The Weaver Show Posts plugin for WordPress, prior to version 1.8.1, contains a vulnerability that allows for PHP object injection via improperly unserialised content from imported files. This vulnerability can be exploited when a user with elevated privileges imports a malicious file into the blog. If such a file is processed, and a suitable gadget chain exists, it could lead to unauthorized actions or data leakage due to the creation of rogue PHP objects.

Affected Version(s)

Weaver Show Posts 0 < 1.8.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-3360 - Proof of Concept

References

https://wpscan.com/vulnerability/7f00e126-7c2a-404d-911a-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
3.3
Severity:
LOW
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Do Xuan Trung
WPScan
.