What is CVE-2015-8815?

CVE-2015-8815 is a medium-severity vulnerability in Umbraco, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-03-03.

How severe is CVE-2015-8815?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Umbraco

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.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-03-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (52.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Umbraco

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

issues.umbraco.org/issue/U4-7461 (Exploit, Issue Tracking)
www.openwall.com/lists/oss-security/2016/02/16/10 (mailing-list, Mailing List)

Frequently asked questions

What is CVE-2015-8815?: CVE-2015-8815 is a medium-severity vulnerability in Umbraco, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-03-03.
How severe is CVE-2015-8815?: Medium severity. CVSS v3 base score is 6.1 out of 10.