CVE-2026-54364 MEDIUM

CVE-2026-54364: CentreStack < 17.4 Session Injection via SelectProvider.aspx

Vendor Gladinet
Product CentreStack
Weakness CWE-116
Published July 30, 2026
Last update July 30, 2026

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

CentreStack before 17.4 contains a session variable injection vulnerability that allows unauthenticated attackers to inject arbitrary session variables by embedding newline and tab characters into a crafted AccountName parameter posted to the SelectProvider.aspx endpoint. Attackers can exploit the lack of input sanitization in the custom session serialization format to inject a resellerid session variable, bypassing the IsValidRSession authentication check and gaining unauthorized access to management pages.

Key dates

02Disclosure timeline

July 30, 2026 CVE published
July 30, 2026 Record updated