CVE-2026-118167— MC4WP: Mailchimp for WordPress < 4.15.0 - Unauthenticated Subscription Audience Override
Quick assessment
Affected
Unknown MC4WP: Mailchimp 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.
在 4.15.0 版本之前的 MC4WP（Mailchimp for WordPress）插件中，未对注册表单或捆绑集成所订阅的 Mailchimp 受众列表是否与站点所有者配置的受众列表一致进行验证。这使得未认证的访客能够将任意电子邮件地址订阅到该站点已连接的 Mailchimp 账户中的任何其他受众列表。
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I. Basic Information for CVE-2026-118167
Vulnerability Information
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Vulnerability Title
MC4WP: Mailchimp for WordPress < 4.15.0 - Unauthenticated Subscription Audience Override
Source: CVE Program / CVE List V5
Vulnerability Description
The MC4WP: Mailchimp for WordPress plugin before 4.15.0 does not validate that the Mailchimp audience a sign-up form or bundled integration subscribes a visitor to matches the audience configured by the site owner, allowing unauthenticated visitors to subscribe arbitrary email addresses to any other audience in the site's connected Mailchimp account.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Unknown | MC4WP: Mailchimp for WordPress | 0 ~ 4.15.0 | - |
|
II. Public POCs for CVE-2026-118167
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Other References for CVE-2026-118167 (1)
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https://wpscan.com/vulnerability/11752539-1dc8-4adb-a680-ce7ecaaff4d1/ exploit vdb-entry technical-description
Same Patch Batch · Unknown · 2026-11-06 · 30 CVEs total
| CVE-2026-118423 | 10.0 CRITICAL | WP Libre Form 1.5.0.1 - Unauthenticated RCE via Arbitrary File Upload |
| CVE-2026-88800 | 9.1 CRITICAL | MDJM Event Management and Mobile Events Manager <= 1.7.8.7 - Unauthenticated Arbitrary Rol |
| CVE-2026-88799 | 8.8 HIGH | MDJM Event Management and Mobile Events Manager <= 1.7.8.7 - Subscriber+ Account Takeover |
| CVE-2026-88801 | 8.0 HIGH | MDJM Event Management and Mobile Events Manager <= 1.7.8.7 - Subscriber+ Stored XSS via Ro |
| CVE-2026-121633 | 5.3 MEDIUM | Order Tracking < 3.6.0 - Unauthenticated Payment Confirmation Forgery via PayPal IPN Liste |
| CVE-2026-121636 | 5.3 MEDIUM | Quick Event Manager 9.9.5 - 9.18 - Unauthenticated PayPal IPN Verification Bypass via the |
| CVE-2026-118166 | 4.8 MEDIUM | MC4WP: Mailchimp for WordPress < 4.15.0 - Unauthenticated Arbitrary Shortcode Execution vi |
| CVE-2026-113615 | GS JWT Authentication <= 1.0.0 - Unauthenticated Privilege Escalation via SQLi | |
| CVE-2026-118239 | AutomatorWP < 6.0.7 - Unauthenticated Zoom/AWeber Integration Connection Hijack via OAuth | |
| CVE-2026-118188 | PublishPress Revisions 3.9.0 - 4.2.0 - Subscriber+ Unpublished Content Disclosure | |
| CVE-2026-115673 | Anti-Spam by CleanTalk < 6.91 - Unauthenticated Stored XSS via Comment Author Email | |
| CVE-2026-118187 | PublishPress Revisions < 4.3.1 - Contributor+ Unpublished Content Disclosure via IDOR | |
| CVE-2026-118186 | PublishPress Revisions 3.6.0 - 4.2.0 - Contributor+ Unapproved Content Publishing via Revi | |
| CVE-2026-86606 | iubenda < 3.13.7 - Unauthenticated Stored XSS via Cookie Block HTML Parser | |
| CVE-2026-110813 | Advanced Custom Fields (ACF®) < 6.8.11 - Unauthenticated Stored XSS via HTML Attribute Nam | |
| CVE-2026-110525 | MCB Stats <= 1.0.0 - Unauthenticated Stored XSS via User-Agent | |
| CVE-2026-92396 | Blocks for ShopEngine < 2.4.4 - Contributor+ Stored XSS via gutenova_store_css | |
| CVE-2026-12967 | WCFM Membership < 2.12.1 - Subscriber+ Payment Verification Bypass | |
| CVE-2026-87784 | Cool Media Filter <= 1.0.1 - Subscriber+ Privilege Escalation via role_permission | |
| CVE-2026-119259 | All-in-One Video Gallery < 5.1.0 - Unauthenticated Views and Duration Post Meta Write |
Showing top 20 of 30 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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