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CVE-2026-55231— Vvveb: Path traversal in Vvveb via sanitizeFileName() bypass enables arbitrary file read and delete through backup tools

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 is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to version 1.0.8.6, a flawed central path sanitizer lets an authenticated admin-panel user who holds backup access (default role site_admin or higher)

CVSS 7.2 · High
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I. Basic Information for CVE-2026-55231

Vulnerability Information

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Vulnerability Title
Vvveb: Path traversal in Vvveb via sanitizeFileName() bypass enables arbitrary file read and delete through backup tools
Source: CVE Program / CVE List V5
Vulnerability Description
Vvveb is a powerful and easy to use CMS with page builder to build websites, blogs or ecommerce stores. Prior to version 1.0.8.6, a flawed central path sanitizer lets an authenticated admin-panel user who holds backup access (default role site_admin or higher) read and delete arbitrary files on a server. An attacker can recover database credentials from config/db.php, read host files such as /etc/passwd, and delete config/db.php to push a site back into install mode for a full takeover. This issue has been patched in version 1.0.8.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
givanz Vvveb < 1.0.8.6 -

II. Public POCs for CVE-2026-55231

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III. Intelligence Information for CVE-2026-55231

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Other References for CVE-2026-55231 (2)

Same Patch Batch · givanz · 2026-10-01 · 3 CVEs total

CVE-2026-55230 8.7 HIGH Vvveb: Stored XSS in Vvveb via sanitizeHTML() filter bypass using a quoted greater-than ch
CVE-2026-55232 7.6 HIGH Vvveb: Server-side request forgery in Vvveb via IPv6 bypass of validateUrl() in editor oEm

IV. Related Vulnerabilities

Same product: Vvveb
Same vendor: givanz
Same weakness: CWE-22

V. Comments for CVE-2026-55231

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