CVE-2026-27505 MEDIUM

CVE-2026-27505: SVXportal <= 2.5 admin/user_action.php Stored XSS

Vendor Sa2Blv
Product SVXportal
Weakness CWE-79 · XSS
Published February 20, 2026
Last update May 11, 2026

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

What the vulnerability does

01Description

SVXportal version 2.5 and prior contain a stored cross-site scripting vulnerability in the user registration workflow (index.php submitting to admin/user_action.php). User-supplied fields such as Firstname, lastname, and email are stored in the backend database without adequate output encoding and are later rendered in the administrator interface (admin/users.php), allowing an unauthenticated remote attacker to inject arbitrary JavaScript that executes in an administrator's browser upon viewing the affected page.

Key dates

02Disclosure timeline

February 20, 2026 CVE published
May 11, 2026 Record updated