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 maliciou…
Published: 2026-07-30 · CVSS: 8.7 · CVSS 4.0
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 StorageConfig endpoint causing the server to fetch and parse attacker-controlled XML containing external DTD references, resulting in out-of-band file exfiltration of sensitive files such as Web.config, which may contain database credentials and cryptographic key material.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7