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CVE-2021-38345— Brizy <= 1.0.125 and 1.0.127 – 2.3.11 Incorrect authorization checks allowing Post modification

Quick assessment

Affected
Brizy.io Brizy - Page Builder
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是Wordpress基金会的一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress 插件是WordPress开源的一个应用插件。 WordPress Plugin 存在跨站脚本漏洞，该漏洞源于 Brizy Page Builder 插件使用了错误的授权检查，允许任何登录用户访问 wp-admin 目录中的任何端点来修改使用 Brizy 编辑器创建的任何现有帖子或页面的内容。

CVSS 7.1 · High EPSS 0.75% · P53

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2021-38345

Vulnerability Information
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Vulnerability Title
Brizy <= 1.0.125 and 1.0.127 – 2.3.11 Incorrect authorization checks allowing Post modification
Source: CVE Program / CVE List V5
Vulnerability Description
The Brizy Page Builder plugin <= 2.3.11 for WordPress used an incorrect authorization check that allowed any logged-in user accessing any endpoint in the wp-admin directory to modify the content of any existing post or page created with the Brizy editor. An identical issue was found by another researcher in Brizy <= 1.0.125 and fixed in version 1.0.126, but the vulnerability was reintroduced in version 1.0.127.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress 插件跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress是Wordpress基金会的一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress 插件是WordPress开源的一个应用插件。 WordPress Plugin 存在跨站脚本漏洞，该漏洞源于 Brizy Page Builder 插件使用了错误的授权检查，允许任何登录用户访问 wp-admin 目录中的任何端点来修改使用 Brizy 编辑器创建的任何现有帖子或页面的内容。
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
Brizy.io Brizy - Page Builder 2.3.11 ~ 2.3.11 -

II. Public POCs for CVE-2021-38345

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III. Intelligence Information for CVE-2021-38345

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Vendor Advisories for CVE-2021-38345 (1)

Same Patch Batch · Brizy.io · 2021-10-14 · 3 CVEs total

CVE-2021-38346 8.8 HIGH Brizy <= 2.3.11 Authenticated Unrestricted File Upload and Path Traversal
CVE-2021-38344 6.4 MEDIUM Brizy <= 2.3.11 Authenticated Stored Cross-Site Scripting

IV. Related Vulnerabilities

Same product: Brizy - Page Builder
Same vendor: Brizy.io
Same weakness: CWE-79

V. Comments for CVE-2021-38345

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