CVE-2026-54366 CentreStack < 17.4 XXE via SharePoint Storage Configuration

CentreStack before 17.4 contains an XML external entity XXE injection vulnerability that allows unauthenticated attackers to exfiltrate arbitrary files by supplying a malicious URL to the SharePoint storage configuration handler. Attackers can send a crafted request to the unauthenticated...

CVE-2026-54365

CentreStack prior to version 17.3 contains an unauthenticated deserialization vulnerability in GSNamespace.dll. An attacker can send a crafted base64-encoded XML via exposed API endpoints (jsonimportuserbyupn, jsonimportuserbyupnex, or japiimportuserbyupn) to trigger InternalImportAdUserByUPN(), ...

EUVD-2026-51101

CentreStack before 17.3 contains an unauthenticated deserialization vulnerability in GSNamespace.dll that allows unauthenticated attackers to create arbitrary local OS user accounts by supplying a crafted base64-encoded XML string to exposed API endpoints. Attackers can send a malicious...

CVE-2026-54365 CentreStack < 17.3 Unauthenticated User Creation via Deserialization in GSNamespace.dll

CentreStack before 17.3 contains an unauthenticated deserialization vulnerability in GSNamespace.dll that allows unauthenticated attackers to create arbitrary local OS user accounts by supplying a crafted base64-encoded XML string to exposed API endpoints. Attackers can send a malicious...

CVE-2026-54365 CentreStack < 17.3 Unauthenticated User Creation via Deserialization in GSNamespace.dll

CentreStack before 17.3 contains an unauthenticated deserialization vulnerability in GSNamespace.dll that allows unauthenticated attackers to create arbitrary local OS user accounts by supplying a crafted base64-encoded XML string to exposed API endpoints. Attackers can send a malicious...

CVE-2026-54364

CentreStack

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

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 th...

CVE-2026-54364

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 th...

EUVD-2026-51100

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 th...

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

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 th...

EUVD-2026-51099

CentreStack before 17.5 contains a hardcoded cryptographic key vulnerability that allows unauthenticated attackers to forge arbitrary encrypted tokens by exploiting a static SysNumber value used as entropy for AccessTicket.Encrypt and AccessTicket.Decrypt across all installations. Attackers can u...

CVE-2026-54363

CentreStack before 17.5 contains a hardcoded cryptographic key vulnerability that allows unauthenticated attackers to forge arbitrary encrypted tokens by exploiting a static SysNumber value used as entropy for AccessTicket.Encrypt and AccessTicket.Decrypt across all installations. Attackers can u...

CVE-2026-54363

CentreStack

CVE-2026-54363 CentreStack < 17.5 Hardcoded Key Token Forgery RCE

CentreStack before 17.5 contains a hardcoded cryptographic key vulnerability that allows unauthenticated attackers to forge arbitrary encrypted tokens by exploiting a static SysNumber value used as entropy for AccessTicket.Encrypt and AccessTicket.Decrypt across all installations. Attackers can u...

PT-2026-66468

CentreStack before 17.2 contains an authentication bypass vulnerability that allows unauthenticated attackers to read, write, or delete arbitrary account settings by exploiting exposed API endpoints that lack authorization checks. Attackers can generate valid encrypted EntAcctId values using the...

PT-2026-66464

Name of the Vulnerable Software and Affected Versions CentreStack versions prior to 17.5 Description The software contains a hardcoded cryptographic key. Unauthenticated attackers can exploit a static SysNumber value used as entropy for the AccessTicket.Encrypt and AccessTicket.Decrypt functions...

CVE-2026-54368: Improper Neutralization of Special Elements used in an SQL Command

CentreStack before 17.4 contains a SQL injection vulnerability in GladDBFiles.SearchEx and SearchExUnder that allows authenticated attackers to execute arbitrary SQL statements by supplying a crafted x-glad-filter request header through the jsondir API endpoint. Attackers can exploit unsanitized...

CVE-2026-54364: Improper Encoding or Escaping of Output

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 th...

PT-2026-66469

CentreStack before 17.4 contains a SQL injection vulnerability in GladDBFiles.SearchEx and SearchExUnder that allows authenticated attackers to execute arbitrary SQL statements by supplying a crafted x-glad-filter request header through the jsondir API endpoint. Attackers can exploit unsanitized...

PT-2026-66466

Name of the Vulnerable Software and Affected Versions CentreStack versions prior to 17.3 Description An unauthenticated deserialization issue exists in GSNamespace.dll. This allows remote attackers to create arbitrary local OS user accounts and create directories on the server filesystem by sendi...