What is CVE-2015-8814?

CVE-2015-8814 is a high-severity vulnerability in Umbraco, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2017-03-03.

How severe is CVE-2015-8814?

High severity. CVSS v3 base score is 8.8 out of 10.

CSRF in Umbraco

CVE-2015-8814

Umbraco before 7.4.0 allows remote attackers to bypass anti-forgery security measures and conduct cross-site request forgery (CSRF) attacks as demonstrated by editing user account information in the templates.asmx.cs file.

Vulnerability class: CSRF (Cross-Site Request Forgery)

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

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (47.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Umbraco — versions 7.3.8

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

issues.umbraco.org/issue/U4-7459 (Issue Tracking)
github.com/umbraco/Umbraco-CMS/commit/18c3345e47663a358a042652e697b988d6a380eb (Patch)
www.openwall.com/lists/oss-security/2016/02/16/10 (mailing-list, Mailing List)

Frequently asked questions

What is CVE-2015-8814?: CVE-2015-8814 is a high-severity vulnerability in Umbraco, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2017-03-03.
How severe is CVE-2015-8814?: High severity. CVSS v3 base score is 8.8 out of 10.