Umbraco.CMS

CVE-2015-8813

CVE-2015-8813 is a high-severity server-side request forgery (SSRF) vulnerability in Umbraco.CMS (nuget), affecting versions < 7.4.0. It is fixed in 7.4.0.

Key facts
CVSS score
8.2
High
Attack vector
Network
Issuing authority
GitHub Advisory Database
Affected package
Umbraco.CMS
Fixed in
7.4.0
Disclosed
2015

Summary

The Page_Load function in Umbraco.Web/umbraco.presentation/umbraco/dashboard/FeedProxy.aspx.cs in Umbraco before 7.4.0 allows remote attackers to conduct server-side request forgery (SSRF) attacks via the url parameter.

Impact

What is server-side request forgery (SSRF)?

Untrusted input controls the target URL of a server-initiated request, which may reach internal services not otherwise accessible from outside. Typical impact: access to internal metadata services, internal APIs, or cloud credentials.

Severity and exposure

CVE-2015-8813 has a CVSS score of 8.2 (High). The vector is network-reachable, no privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment.

A fixed version is available (7.4.0). Upgrading removes the vulnerable code path.

Affected versions

nuget

  • Umbraco.CMS (< 7.4.0)

Security releases

  • Umbraco.CMS → 7.4.0 (nuget)
Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter instead of chasing every advisory.

Kodem's runtime-powered SCA identifies whether CVE-2015-8813 is reachable in your applications. Explore open-source security for your team.

See if CVE-2015-8813 is reachable in your applications. Get a demo

Remediation advice

Upgrade Umbraco.CMS to 7.4.0 or later to resolve this vulnerability.

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently asked questions about CVE-2015-8813

What is CVE-2015-8813?

CVE-2015-8813 is a high-severity server-side request forgery (SSRF) vulnerability in Umbraco.CMS (nuget), affecting versions < 7.4.0. It is fixed in 7.4.0. Untrusted input controls the target URL of a server-initiated request, which may reach internal services not otherwise accessible from outside.

How severe is CVE-2015-8813?

CVE-2015-8813 has a CVSS score of 8.2 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.

Which versions of Umbraco.CMS are affected by CVE-2015-8813?

Umbraco.CMS (nuget) versions < 7.4.0 is affected.

Is there a fix for CVE-2015-8813?

Yes. CVE-2015-8813 is fixed in 7.4.0. Upgrade to this version or later.

Is CVE-2015-8813 exploitable, and should I be worried?

Whether CVE-2015-8813 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo

What actually determines whether CVE-2015-8813 is exploitable, and how bad it is?

Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.

How do I fix CVE-2015-8813?

Upgrade Umbraco.CMS to 7.4.0 or later.

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