CVE 4.7 MEDIUM

InstantCMS vulnerable to Server-Side Request Forgery via package installer_CVE-2025-59055

4.7 / 10
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

Description

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.

Basic Information

ID CVE-2025-59055
Source GitHub_M
Published Sep 11, 2025 at 18:46
Modified Sep 11, 2025 at 19:10

Affected Product

Vendor instantsoft
Product icms2
Version <= 2.17.3
Affected Versions instantsoft icms2 <= 2.17.3

CWE Classification

References

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