CVE-2025-53256: WordPress YaySMTP plugin <= 2.6.6 - SQL Injection Vulnerability

Severity: high (CVSS 7.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-06-27 · updated 2026-06-17
Weakness: CWE-89

Description

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in YayCommerce YaySMTP yaysmtp allows SQL Injection.This issue affects YaySMTP: from n/a through <= 2.6.6.

Affected products

YaySMTP – Simple WP SMTP Mail: through 2.6.6

References

https://patchstack.com/database/Wordpress/Plugin/yaysmtp/vulnerability/wordpress-yaysmtp-plugin-6-8-1-sql-injection-vulnerability?_s_id=cve

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