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    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.

    Published:Sep 11, 2025
    Last Modified:Sep 24, 2025
    EPS:Sep 11, 2025
    EPSS Score:0.0012
    CVSS Score:4.7

    Affected Products

    Vendor
    Instantcms
    Product
    Instantcms
    Vendor
    Instantsoft
    Product
    Instantcms

    Exploits

    https://github.com/instantsoft/icms2/security/advisories/GHSA-79hh-mhvg-whrw

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

    Related CVEs

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    CVE-2024-50348 (CVSS 5.4) — InstantCMS is a free and open source content management system. In photo upload function in the photo album pa…
    CVE-2024-31213 (CVSS 3.5) — InstantCMS is a free and open source content management system. An open redirect was found in the ICMS2 applic…
    CVE-2024-31212 (CVSS 6.7) — InstantCMS is a free and open source content management system. A SQL injection vulnerability affects instantc…
    CVE-2023-4879 (CVSS 4.8) — Cross-site Scripting (XSS) - Stored in GitHub repository instantsoft/icms2 prior to 2.16.1.-git.…
    CVE-2023-4878 (CVSS 5.4) — Server-Side Request Forgery (SSRF) in GitHub repository instantsoft/icms2 prior to 2.16.1-git.…
    CVE-2023-4704 (CVSS 4.9) — External Control of System or Configuration Setting in GitHub repository instantsoft/icms2 prior to 2.16.1-git…
    CVE-2023-4654 (CVSS 3.5) — Sensitive Cookie in HTTPS Session Without 'Secure' Attribute in GitHub repository instantsoft/icms2 prior to 2…
    CVE-2023-4655 (CVSS 6.1) — Cross-site Scripting (XSS) - Reflected in GitHub repository instantsoft/icms2 prior to 2.16.1.…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High