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CVE-2026-63048— Joomla Extension - joomlack.fr - Improper access control in Page Builder CK 1.0.0-3.1.2, 3.4.0-3.4.11, 3.5.0-3.6.2

Quick assessment

Affected
joomlack.fr Page Builder CK extension for Joomla
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Page Builder CK extension for Joomla是一款Joomla的页面构建器扩展组件。 Depuis Page Builder CK extension for Joomla 1.0.0版本至3.6.2版本存在任意文件上传漏洞，该漏洞源于任意文件上传，经过身份验证的攻击者可利用该漏洞上传恶意文件，从而导致远程代码执行。

CVSS 9.4 · Critical EPSS 0.38% · P30

Affected Version Matrix 3

VendorProduct Version RangeStatus
joomlack.fr Page Builder CK extension for Joomla 1.0.0-3.1.2 affected
3.4.0-3.4.11 affected
3.5.0-3.6.2 affected
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I. Basic Information for CVE-2026-63048

Vulnerability Information
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Vulnerability Title
Joomla Extension - joomlack.fr - Improper access control in Page Builder CK 1.0.0-3.1.2, 3.4.0-3.4.11, 3.5.0-3.6.2
Source: CVE Program / CVE List V5
Vulnerability Description
Joomla Extension - joomlack.fr - Improper access control in Page Builder CK 1.0.0-3.1.2, 3.4.0-3.4.11, 3.5.0-3.6.2 - The Joomla extension Page Builder CK is vulnerable to an authenticated arbitrary file upload, leading to RCE.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
Depuis Page Builder CK extension for Joomla 任意文件上传漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Page Builder CK extension for Joomla是一款Joomla的页面构建器扩展组件。 Depuis Page Builder CK extension for Joomla 1.0.0版本至3.6.2版本存在任意文件上传漏洞，该漏洞源于任意文件上传，经过身份验证的攻击者可利用该漏洞上传恶意文件，从而导致远程代码执行。
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
joomlack.fr Page Builder CK extension for Joomla 1.0.0-3.1.2 -

II. Public POCs for CVE-2026-63048

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
default-local-qwen3.6 · 15422 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-63048

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Security Blog Posts for CVE-2026-63048 (1)

IV. Related Vulnerabilities

Same product: Page Builder CK extension for Joomla
Same vendor: joomlack.fr
Same weakness: CWE-434

V. Comments for CVE-2026-63048

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