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CVE-2026-12757— Email Subscribers & Newsletters <= 5.9.27 - Unauthenticated Arbitrary Shortcode Execution via Subscriber Name Field

Quick assessment

Affected
icegram Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress
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.

WordPress 插件 “The Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress” 存在任意短代码（shortcode）执行漏洞，影响所有 5.9.27 及以下版本。该漏洞的成因在于：软件允许用户触发某个操作，但在调用 之前未对该操作的参数值进行充分验证。因此，未认证的攻击者可以利用此漏洞执行任意短代码。

CVSS 6.5 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
icegram Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress ≤ 5.9.27 affected
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I. Basic Information for CVE-2026-12757

Vulnerability Information
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Vulnerability Title
Email Subscribers & Newsletters <= 5.9.27 - Unauthenticated Arbitrary Shortcode Execution via Subscriber Name Field
Source: CVE Program / CVE List V5
Vulnerability Description
The The Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 5.9.27. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
icegram Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress 0 ~ 5.9.27 -

II. Public POCs for CVE-2026-12757

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III. Intelligence Information for CVE-2026-12757

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Vendor Pages for CVE-2026-12757 (3)

IV. Related Vulnerabilities

Same product: Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress
Same vendor: icegram
Same weakness: CWE-94

V. Comments for CVE-2026-12757

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