---
id: CVE-2026-41932
title: Vvveb < 1.0.8.3 Stored XSS via Signup Controller
summary: >-
  Vvveb before 1.0.8.3 contains a stored cross-site scripting vulnerability in
  the customer signup flow where the Signup::addUser() controller copies raw
  POST username values into the display_name field before sanitization occurs.
  Attacker…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-79
vendor: givanz
product: Vvveb
affected:
  - Vvveb < 1.0.8.3
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-05-14T15:33:27.478326Z'
published: '2026-05-14'
updated: '2026-11-08'
sourceUpdated: '2026-11-08T14:03:10.440Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-41932'
references:
  - url: 'https://github.com/givanz/Vvveb/releases/tag/1.0.8.3'
    label: Vvveb 1.0.8.3 Release Notes
  - url: >-
      https://github.com/givanz/Vvveb/commit/fefac290a8c85d3c87fe80ffed68b6c5bc50e93c
  - url: >-
      https://www.vulncheck.com/advisories/vvveb-stored-xss-via-signup-controller
tags:
  - cve.org
epss: 0.00218
epssPercentile: 0.12316
ingestedAt: '2026-11-08T14:51:22.435Z'
---

## Overview

Vvveb before 1.0.8.3 contains a stored cross-site scripting vulnerability in the customer signup flow where the Signup::addUser() controller copies raw POST username values into the display_name field before sanitization occurs. Attackers can submit HTML and script markup in the username field during signup, which gets stripped from the username column but persisted verbatim in the display_name column, allowing stored XSS execution when display_name is rendered without encoding in vulnerable views.

## Affected

- `Vvveb < 1.0.8.3`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.