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CVE-2026-66627— WordPress GP Premium plugin <= 2.5.5 - Arbitrary File Upload vulnerability

Quick assessment

Affected
EDGE22 Studios Ltd. GP Premium
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.

EDGE22 Studios GP Premium是EDGE22 Studios公司的一款为GeneratePress主题提供主题构建、样式控制、布局设置、站点模板及WooCommerce扩展功能的WordPress插件。 EDGE22 Studios GP Premium 2.5.5及之前版本存在任意文件上传漏洞，该漏洞源于文件上传功能验证不当，可能导致具有贡献者权限的用户上传任意文件。

CVSS 9.9 · Critical EPSS 0.48% · P40

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
EDGE22 Studios Ltd. GP Premium n/a≤ 2.5.5 affected
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I. Basic Information for CVE-2026-66627

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
WordPress GP Premium plugin <= 2.5.5 - Arbitrary File Upload vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Unrestricted Upload of File with Dangerous Type vulnerability in EDGE22 Studios Ltd. GP Premium allows Remote Code Inclusion. This issue affects GP Premium: from n/a through 2.5.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A: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
EDGE22 Studios GP Premium 任意文件上传漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
EDGE22 Studios GP Premium是EDGE22 Studios公司的一款为GeneratePress主题提供主题构建、样式控制、布局设置、站点模板及WooCommerce扩展功能的WordPress插件。 EDGE22 Studios GP Premium 2.5.5及之前版本存在任意文件上传漏洞，该漏洞源于文件上传功能验证不当，可能导致具有贡献者权限的用户上传任意文件。
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
EDGE22 Studios Ltd. GP Premium n/a ~ 2.5.5 -

II. Public POCs for CVE-2026-66627

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

No public POC found.

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III. Intelligence Information for CVE-2026-66627

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IV. Related Vulnerabilities

Same product: GP Premium
Same weakness: CWE-434

V. Comments for CVE-2026-66627

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