CVE-2026-27503 MEDIUM

CVE-2026-27503: SVXportal <= 2.5 admin/log.php Search Reflected 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 None
User interaction
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

SVXportal version 2.5 and prior contain a reflected cross-site scripting vulnerability in admin/log.php via the search query parameter. When an authenticated administrator views a crafted URL, the application embeds the unsanitized parameter value directly into an HTML input value attribute, allowing attacker-supplied JavaScript to execute in the administrator's browser. This can enable session theft, administrative action forgery, or other browser-based compromise in the context of an admin user.

Key dates

02Disclosure timeline

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