Single Personal Message 1.0.3 WordPress Plugin SQL Injection
CVE-2016-20063

7.1HIGH

Key Information:

Vendor

WordPress
Status
Single Personal Message
Vendor
CVE Published:
9 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2016-20063?

Single Personal Message 1.0.3 contains an SQL injection vulnerability that allows authenticated users to execute arbitrary SQL queries by injecting malicious code through the message parameter. Attackers can access the admin interface and supply crafted SQL statements in the message parameter to extract sensitive database information including user credentials and site configuration data.

Affected Version(s)

Single Personal Message 1.0.3

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-2016-20063 - Proof of Concept

References

https://www.exploit-db.com/exploits/40870
exploit
https://wordpress.org/plugins/simple-personal-message/
product
http://lenonleite.com.br/
product

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Lenon Leite
.