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CVE-2026-2028— Maxi Blocks <= 2.1.8 - Missing Authorization to Authenticated (Author+) Media File Deletion via 'old_media_src' Parameter

Quick assessment

Affected
ckp267 MaxiBlocks Builder | 17,000+ Design Assets, Patterns, Icons & Starter Sites
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 MaxiBlocks Builder 2.1.8及之前版本存在安全漏洞，该漏洞源于对maxi_remove_custom_image_size AJAX操作的文件所有权验证不足，可能导致经过身份验证的攻击者删除wp-

CVSS 5.3 · Medium EPSS 0.32% · P24

Possible ATT&CK Techniques 1 AI

T1485 · Data Destruction
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I. Basic Information for CVE-2026-2028

Vulnerability Information
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Vulnerability Title
Maxi Blocks <= 2.1.8 - Missing Authorization to Authenticated (Author+) Media File Deletion via 'old_media_src' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The MaxiBlocks Builder plugin for WordPress is vulnerable to arbitrary media file deletion due to insufficient file ownership validation on the 'maxi_remove_custom_image_size' AJAX action in all versions up to, and including, 2.1.8. This makes it possible for authenticated attackers, with Author-level access and above, to delete arbitrary files in the wp-content/uploads directory, including files uploaded by other users and administrators.
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
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin MaxiBlocks Builder 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 MaxiBlocks Builder 2.1.8及之前版本存在安全漏洞，该漏洞源于对maxi_remove_custom_image_size AJAX操作的文件所有权验证不足，可能导致经过身份验证的攻击者删除wp-
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
ckp267 MaxiBlocks Builder | 17,000+ Design Assets, Patterns, Icons & Starter Sites 0 ~ 2.1.8 -

II. Public POCs for CVE-2026-2028

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III. Intelligence Information for CVE-2026-2028

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Vendor Advisories for CVE-2026-2028 (1)

IV. Related Vulnerabilities

Same product: MaxiBlocks Builder | 17,000+ Design Assets, Patterns, Icons & Starter Sites
Same vendor: ckp267
Same weakness: CWE-639

V. Comments for CVE-2026-2028

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