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CVE-2025-13079— Popup Builder - Create highly converting, mobile friendly marketing popups. <= 4.4.2 - Improper Authorization to Unauthenticated Subscriber Removal via Predictable Tokens

Quick assessment

Affected
popupbuilder Popup Builder – Create highly converting, mobile friendly marketing popups.
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和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Popup Builder – Create highly converting, mobile friendly marketing popups 4.4.2及之前版本存在安全漏洞，该漏洞源于使用确定性数据生成可预

CVSS 5.3 · Medium EPSS 0.40% · P32
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I. Basic Information for CVE-2025-13079

Vulnerability Information
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Vulnerability Title
Popup Builder - Create highly converting, mobile friendly marketing popups. <= 4.4.2 - Improper Authorization to Unauthenticated Subscriber Removal via Predictable Tokens
Source: CVE Program / CVE List V5
Vulnerability Description
The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.2. This is due to the plugin generating predictable unsubscribe tokens using deterministic data. This makes it possible for unauthenticated attackers to unsubscribe arbitrary subscribers from mailing lists via brute-forcing the unsubscribe token, granted they know the victim's email address
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1241
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Popup Builder – Create highly converting, mobile friendly marketing popups 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Popup Builder – Create highly converting, mobile friendly marketing popups 4.4.2及之前版本存在安全漏洞，该漏洞源于使用确定性数据生成可预
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
popupbuilder Popup Builder – Create highly converting, mobile friendly marketing popups. * ~ 4.4.2 -

II. Public POCs for CVE-2025-13079

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III. Intelligence Information for CVE-2025-13079

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Patches & Fixes for CVE-2025-13079 (3)

IV. Related Vulnerabilities

Same product: Popup Builder – Create highly converting, mobile friendly marketing popups.
Same vendor: popupbuilder
Same weakness: CWE-1241

V. Comments for CVE-2025-13079

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