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CVE-2026-34427— Vvveb < 1.0.8.1 Privilege Escalation via admin/user/save

Quick assessment

Affected
givanz Vvveb
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.

Vvveb是Givan个人开发者的一个强大且易于使用的CMS，用于构建网站、博客或电子商务商店。 Vvveb 1.0.8.1之前版本存在安全漏洞，该漏洞源于管理员用户配置文件保存端点存在权限提升问题，可能导致攻击者提升至超级管理员权限。

CVSS 8.8 · High EPSS 0.96% · P60

Affected Version Matrix 2

VendorProduct Version RangeStatus
givanz Vvveb < 1.0.8.1 affected
0eca14af50f038915b8bf7ceec2becf6b6720b0a unaffected
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I. Basic Information for CVE-2026-34427

Vulnerability Information
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Vulnerability Title
Vvveb < 1.0.8.1 Privilege Escalation via admin/user/save
Source: CVE Program / CVE List V5
Vulnerability Description
Vvveb prior to 1.0.8.1 contains a privilege escalation vulnerability in the admin user profile save endpoint that allows authenticated users to modify privileged fields on their own profile. Attackers can inject role_id=1 into profile save requests to escalate to Super Administrator privileges, enabling plugin upload functionality for remote code execution.
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
CWE-915
Source: CVE Program / CVE List V5
Vulnerability Title
Vvveb 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vvveb是Givan个人开发者的一个强大且易于使用的CMS，用于构建网站、博客或电子商务商店。 Vvveb 1.0.8.1之前版本存在安全漏洞，该漏洞源于管理员用户配置文件保存端点存在权限提升问题，可能导致攻击者提升至超级管理员权限。
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
givanz Vvveb 0 ~ 1.0.8.1 -

II. Public POCs for CVE-2026-34427

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III. Intelligence Information for CVE-2026-34427

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Patches & Fixes for CVE-2026-34427 (1)

Vendor Pages for CVE-2026-34427 (1)

Same Patch Batch · givanz · 2026-04-20 · 4 CVEs total

CVE-2026-39918 9.8 CRITICAL Vvveb < 1.0.8.1 Code Injection via Installation Endpoint
CVE-2026-34428 7.7 HIGH Vvveb < 1.0.8.1 SSRF via oEmbedProxy
CVE-2026-34429 5.4 MEDIUM Vvveb < 1.0.8.1 Stored XSS via Media Upload and Rename

IV. Related Vulnerabilities

Same product: Vvveb
Same vendor: givanz
Same weakness: CWE-915

V. Comments for CVE-2026-34427

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