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

Quick assessment

Affected
YayCommerce YayMail
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

YayMail 插件 4.4.6 及以下版本中存在面向商店管理员的 PHP 对象注入漏洞。

CVSS 7.2 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
YayCommerce YayMail n/a≤ 4.4.6 affected
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I. Basic Information for CVE-2026-42701

Vulnerability Information
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Vulnerability Title
WordPress YayMail plugin <= 4.4.6 - PHP Object Injection vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Shop manager PHP Object Injection in YayMail <= 4.4.6 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
YayCommerce YayMail n/a ~ 4.4.6 -

II. Public POCs for CVE-2026-42701

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-42701

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Vendor Advisories for CVE-2026-42701 (1)

IV. Related Vulnerabilities

Same product: YayMail
Same vendor: YayCommerce
Same weakness: CWE-502