VULNERABILITY INTELLIGENCE
CVE-2018-17256
CVSS score4.8 MEDIUM
EPSS probability0.65%
CISA KEVNot currently listed
Published2018-11-27
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Description
Persistent cross-site scripting (XSS) vulnerability in Umbraco CMS 7.12.3 allows authenticated users to inject arbitrary web script via the Header Name of a content (Blog, Content Page, etc.). The vulnerability is exploited when updating or removing public access of a content.
Weakness classification
- CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Primary references
- vulnerability@cspcert.ph — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory