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.

Score

CVSS 4.0 7.1 High

Status

Deferred - disclosure@vulncheck.com

Published

2026-06-09

Last modified

2026-06-09

Weaknesses

CWE-89

Affected products

• Single Personal Message (Md. Shamim Shahnewaz)

References

• http://lenonleite.com.br/
• http://target/wp-admin/admin.php?page=simple-personal-message-outbox&action=view&message=0%20UNION%20SELECT%201,2.3,nam…
• https://wordpress.org/plugins/simple-personal-message/
• https://www.exploit-db.com/exploits/40870
• https://www.vulncheck.com/advisories/single-personal-message-wordpress-plugin-sql-injection