Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-2573— GutenKit <= 2.4.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'postBodyCss'

Quick assessment

Affected
ataurr GutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg 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 GutenKit是WordPress基金会的一款模块化网站设计套件。 WordPress GutenKit 2.4.4及之前版本存在跨站脚本漏洞，该漏洞源于对postBodyCss参数输入清理和输出转义不足，容易受到存储型跨站脚本攻击，可能导致具有Contributor级别及以上权限的认证攻击者注入任意Web脚本，在用户访问被注入页面时执行。

CVSS 6.4 · Medium EPSS 0.26% · P17

Affected Version Matrix 1

VendorProduct Version RangeStatus
ataurr GutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg Block Editor ≤ 2.4.4 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-2573

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
GutenKit <= 2.4.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'postBodyCss'
Source: CVE Program / CVE List V5
Vulnerability Description
The GutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg Block Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘postBodyCss’ parameter in all versions up to, and including, 2.4.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
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 GutenKit 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress GutenKit是WordPress基金会的一款模块化网站设计套件。 WordPress GutenKit 2.4.4及之前版本存在跨站脚本漏洞，该漏洞源于对postBodyCss参数输入清理和输出转义不足，容易受到存储型跨站脚本攻击，可能导致具有Contributor级别及以上权限的认证攻击者注入任意Web脚本，在用户访问被注入页面时执行。
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
ataurr GutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg Block Editor 0 ~ 2.4.4 -

II. Public POCs for CVE-2026-2573

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-2573

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-2573 (1)

News Coverage for CVE-2026-2573 (1)

IV. Related Vulnerabilities

Same product: GutenKit – Page Builder Blocks, Patterns, and Templates for Gutenberg Block Editor
Same vendor: ataurr
Same weakness: CWE-79

V. Comments for CVE-2026-2573

No comments yet

Leave a comment