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CVE-2026-15930— Simple Membership < 4.7.8 - Unauthenticated Administrator Account Takeover via Registration Username Collision

Quick assessment

Affected
Unknown Simple Membership
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 Simple Membership是WordPress基金会开源的一个内容管理系统的会员管理插件。 WordPress Simple Membership 4.7.8之前版本存在安全漏洞，该漏洞源于未验证注册期间用户创建是否失败，使用返回值作为用户ID更新账户，可能导致未经身份验证的攻击者覆盖主管理员账户数据（包括电子邮件地址），并通过密码重置流程接管该账户。

AI Predicted 9.1 Difficulty: Easy EPSS 0.42% · P34

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown Simple Membership < 4.7.8 affected
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I. Basic Information for CVE-2026-15930

Vulnerability Information
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Vulnerability Title
Simple Membership < 4.7.8 - Unauthenticated Administrator Account Takeover via Registration Username Collision
Source: CVE Program / CVE List V5
Vulnerability Description
The Simple Membership WordPress plugin before 4.7.8 does not verify whether user creation failed during registration before using the returned value as a user ID to update an account, allowing unauthenticated attackers to overwrite the primary administrator's account data (including the email address) and take over that account through the password reset flow.
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
Vulnerability Title
WordPress Simple Membership 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Simple Membership是WordPress基金会开源的一个内容管理系统的会员管理插件。 WordPress Simple Membership 4.7.8之前版本存在安全漏洞，该漏洞源于未验证注册期间用户创建是否失败，使用返回值作为用户ID更新账户，可能导致未经身份验证的攻击者覆盖主管理员账户数据（包括电子邮件地址），并通过密码重置流程接管该账户。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown Simple Membership 0 ~ 4.7.8 -

II. Public POCs for CVE-2026-15930

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III. Intelligence Information for CVE-2026-15930

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Vendor Advisories for CVE-2026-15930 (1)

Same Patch Batch · Unknown · 2026-08-03 · 27 CVEs total

CVE-2026-15231 TaxoPress < 3.51.0 - Contributor+ Private Post Disclosure via IDOR
CVE-2026-16057 Contest Gallery < 30.0.7 - Author+ Arbitrary Post Deletion via post_cg_youtube_delete_from
CVE-2026-16274 Classified Listing < 5.4.4 - Contributor+ Unpublished Post Content Disclosure via rtcl_blo
CVE-2026-15254 Simply Schedule Appointments < 1.6.12.11 - Contributor+ Sensitive Data Disclosure via Admi
CVE-2025-15672 Chama < 1.0.13 - Unauthenticated PHP Object Injection
CVE-2025-15673 Import and export users and customers < 2.4.3 - Admin+ Arbitrary File Read
CVE-2026-16532 Link Library < 7.9.3 - Unauthenticated SQL Injection via the Front-End Link Submission For
CVE-2026-16534 Import and export users and customers < 2.4.2 - Custom Role Privilege Escalation to Admini
CVE-2026-16276 Classified Listing < 5.4.4 - Contributor+ Store Revenue Total Disclosure via rtcl_revenue_
CVE-2026-13340 SVG Support < 2.5.17 - Author+ Stored XSS via .svgz Sanitization Bypass
CVE-2026-12872 Webinfos <= 1.2 - Unauthenticated Arbitrary File Upload
CVE-2026-12965 Super Store Finder < 7.11 - Unauthenticated SQL Injection via ssf_tracking
CVE-2026-14557 SoftMarket <= 1.0.0 - Unauthenticated Account Takeover via Email Verification Bypass
CVE-2026-16565 Dokan < 5.0.9 - Vendor+ Cross-Vendor Product Attribute Modification via Product Attribute
CVE-2026-16060 Insert or Embed Articulate Content into WordPress <= 4.3000000027 - Editor+ Arbitrary File
CVE-2026-16250 Personal QR Message <= 1.0 - Unauthenticated Arbitrary File Upload
CVE-2026-15383 Blog Floating Button <= 1.4.20 - Unauthenticated Stored XSS via User-Agent Header
CVE-2026-15260 Geo My WP < 4.5.5.3 - Subscriber+ Arbitrary Geolocation Record Modification and Deletion v
CVE-2026-15931 Simple Membership < 4.7.8 - Unauthenticated Stored XSS via PayPal Subscription Subscriber
CVE-2026-16539 SM Page Duplicator <= 1.0.0 - Editor+ SQL Injection via Page Duplication

Showing top 20 of 27 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Simple Membership
Same vendor: Unknown

V. Comments for CVE-2026-15930

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