CVE-2026-54364
CentreStack < 17.4 Session Injection via SelectProvider.aspx
- State
- Published
- Severity
- 6.9 Medium
- Published
- Jul 30, 2026
- Updated
- Aug 14, 2026
- Reserved
- Jun 12, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | 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 | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-116 Improper Encoding or Escaping of Output
Affected Products
| Product | Versions |
|---|---|
CentreStackGladinet |
|
References
- Product Homepageproduct
- https://www.vulncheck.com/advisories/centrestack-session-injection-via-selectprovider-aspxthird-party-advisory
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