CVE-2026-42701: WordPress YayMail plugin <= 4.4.6 - PHP Object Injection vulnerability

High severity · published Oct 29, 2026

CVE-2026-42701

WordPress YayMail plugin <= 4.4.6 - PHP Object Injection vulnerability

New

7.2

CVSS

–

EPSS

On KEV

Description

Shop manager PHP Object Injection in YayMail <= 4.4.6 versions.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack vector

Network

Complexity

Low

Privileges

High

User interaction

None

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

YayMail · YayCommerce

through 4.4.6 · source: vendor

Affected product

YayMail

YayCommerce

All YayMail CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-42701

CVE.org

https://www.cve.org/CVERecord?id=CVE-2026-42701

vdb-entry

https://patchstack.com/database/wordpress/plugin/yaymail/vulnerability/wordpress-yaymail-plugin-4-4-6-php-object-injection-vulnerability?_s_id=cve