How severe is CVE-2015-8813?

CVE-2015-8813 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity high, and availability none.

Is CVE-2015-8813 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-8813?

CVE-2015-8813 affects Umbraco. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-8813?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2015-8813 published?

CVE-2015-8813 was published on 2017-03-03 and last updated on 2026-06-17.

CVE-2015-8813

CVE-2015-8813 is a high-severity vulnerability in Umbraco with a CVSS 3.x base score of 8.2. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-918.

Key facts

Severity: High (CVSS 3.x base score 8.2)
CVSS v2: 4.3
EPSS exploit prediction: 12% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Umbraco
Published: 2017-03-03
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2015-8813?: 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.
How severe is CVE-2015-8813?: CVE-2015-8813 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity high, and availability none.
Is CVE-2015-8813 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-8813?: CVE-2015-8813 affects Umbraco. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-8813?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2015-8813 published?: CVE-2015-8813 was published on 2017-03-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:umbraco:umbraco:*:*:*:*:*:*:*:*

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