How severe is CVE-2015-8815?

CVE-2015-8815 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2015-8815 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-8815?

CVE-2015-8815 affects Umbraco. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-8815?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-8815 published?

CVE-2015-8815 was published on 2017-03-03 and last updated on 2026-06-17.

CVE-2015-8815

CVE-2015-8815 is a medium-severity vulnerability in Umbraco with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 5.0
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Umbraco
Published: 2017-03-03
Last modified: 2026-06-17

Description

Multiple cross-site scripting (XSS) vulnerabilities in Umbraco before 7.4.0 allow remote attackers to inject arbitrary web script or HTML via the name parameter to (1) the media page, (2) the developer data edit page, or (3) the form page.

Frequently asked questions

What is CVE-2015-8815?: Multiple cross-site scripting (XSS) vulnerabilities in Umbraco before 7.4.0 allow remote attackers to inject arbitrary web script or HTML via the name parameter to (1) the media page, (2) the developer data edit page, or (3) the form page.
How severe is CVE-2015-8815?: CVE-2015-8815 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2015-8815 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-8815?: CVE-2015-8815 affects Umbraco. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-8815?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-8815 published?: CVE-2015-8815 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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