CVE-2025-59055

InstantCMS is a free and open source content management system. A blind Server-Side Request Forgery (SSRF) vulnerability in InstantCMS up to and including 2.17.3 allows authenticated remote attackers to make nay HTTP/HTTPS request via the package parameter. It is possible to make any HTTP/HTTPS request to any website in installer functionality. Due to such vulnerability it is possible to for example scan local network, call local services and its functions, conduct a DoS attack, and/or disclose a server's real IP if it's behind a reverse proxy. It is also possible to exhaust server resources by sending plethora of such requests. As of time of publication, no patched releases are available.

CVSS v3 4.7 MEDIUM

4.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/instantsoft/icms2/commit/fa997bdab3429fad0c850966bfacbcb96d5ab041	Patch
https://github.com/instantsoft/icms2/security/advisories/GHSA-79hh-mhvg-whrw	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:instantcms:instantcms:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-09-11 19:15

Updated : 2025-09-24 13:30

NVD link : CVE-2025-59055

Mitre link : CVE-2025-59055

CVE.ORG link : CVE-2025-59055

JSON object : View

Products Affected

instantcms

instantcms

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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