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CVE-2026-7465— Spectra Gutenberg Blocks <= 2.19.25 - Authenticated (Contributor+) Remote Code Execution via Arbitrary PHP Function Call via Block Attributes

Quick assessment

Affected
brainstormforce Spectra Gutenberg Blocks – Website Builder for the Block Editor
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 Spectra Gutenberg Blocks 2.19.25及之前版本存在安全漏洞，该漏洞源于允许经过身份验证的攻击者通过两个块有效载荷执行远程代码。

CVSS 8.8 · High EPSS 0.97% · P61

Affected Version Matrix 1

VendorProduct Version RangeStatus
brainstormforce Spectra Gutenberg Blocks – Website Builder for the Block Editor ≤ 2.19.25 affected
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I. Basic Information for CVE-2026-7465

Vulnerability Information
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Vulnerability Title
Spectra Gutenberg Blocks <= 2.19.25 - Authenticated (Contributor+) Remote Code Execution via Arbitrary PHP Function Call via Block Attributes
Source: CVE Program / CVE List V5
Vulnerability Description
The Spectra Gutenberg Blocks – Website Builder for the Block Editor plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.19.25. This makes it possible for authenticated attackers, with Contributor-level access and above, to execute code on the server. Exploitation requires a two-block payload embedded in post content: the first block registers a fake uagb/-prefixed block type with an attacker-specified render_callback, and the second block of the same fake type triggers invocation of that callback via call_user_func() during sequential block rendering in the same page request.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Spectra Gutenberg Blocks 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 Spectra Gutenberg Blocks 2.19.25及之前版本存在安全漏洞，该漏洞源于允许经过身份验证的攻击者通过两个块有效载荷执行远程代码。
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
brainstormforce Spectra Gutenberg Blocks – Website Builder for the Block Editor 0 ~ 2.19.25 -

II. Public POCs for CVE-2026-7465

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III. Intelligence Information for CVE-2026-7465

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Patches & Fixes for CVE-2026-7465 (1)

News Coverage for CVE-2026-7465 (1)

Vendor Pages for CVE-2026-7465 (1)

IV. Related Vulnerabilities

Same product: Spectra Gutenberg Blocks – Website Builder for the Block Editor
Same vendor: brainstormforce
Same weakness: CWE-269

V. Comments for CVE-2026-7465

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