CVE-2026-54364

MEDIUM 6.5

CentreStack < 17.4 Session Injection via SelectProvider.aspx

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-116
Vendor	gladinet
Product	centrestack
Published	Jul 30, 2026
Last Updated	Jul 30, 2026

Stay Ahead of the Next One

Get instant alerts for gladinet centrestack

Be the first to know when new medium vulnerabilities affecting gladinet centrestack are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

Gladinet / CentreStack

0 < 17.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

centrestack.com: https://www.centrestack.com/ vulncheck.com: https://www.vulncheck.com/advisories/centrestack-session-injection-via-selectprovider-aspx

Credits

PeterV @cfc security ltd