CVE-2016-20063Public exploitNetwork attack vector

Authenticated SQL injection via unescaped message parameter

Published Jun 9, 2026 · Updated Jun 9, 2026

SQL injection in Simple Personal Message 1.0.3 allows remote authenticated users to read database data through the message parameter. The outbox view reads the message GET parameter without integer coercion before incorporating it into a database query, enabling UNION-based query manipulation. Any registered WordPress user can reach the view, exposing credentials and site configuration and permitting limited database changes.

CVSS severity7.1
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Simple Personal Message 1.0.3 allows remote authenticated users to read database data through the message parameter. The outbox view reads the message GET parameter without integer coercion before incorporating it into a database query, enabling UNION-based query manipulation. Any registered WordPress user can reach the view, exposing credentials and site configuration and permitting limited database changes.

The record

CVE
CVE-2016-20063
Published
Jun 9, 2026
Updated
Jun 9, 2026
Vendor
Md. Shamim Shahnewaz
Product
Simple Personal Message
Classifications
CWE-89, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 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=1.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Md. Shamim Shahnewaz · Simple Personal Messageversion=1.0.3

Published CVSS scores

7.1INCIBE-CERTCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
7.1INCIBE-CERTCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

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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