Vulnerability · Published May 14, 2026 · Assigned by VulnCheck

CVE-2026-41932Vvveb < 1.0.8.3 Stored XSS via Signup Controller

Medium 6.1

In plain English

A medium-severity cross-site scripting in Vvveb from givanz. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.2%top 87.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 products (as reported)

Vendor	Product	Versions
givanz	Vvveb	0 – before 1.0.8.3

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

https://github.com/givanz/Vvveb/releases/tag/1.0.8.3 release-notes
https://github.com/givanz/Vvveb/commit/fefac290a8c85d3c87fe80ffed68b6c5bc50e93c patch
https://www.vulncheck.com/advisories/vvveb-stored-xss-via-signup-controller third-party-advisory