Servers and applications
CVE-2018-17256
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.
- Severity
- Medium 4.8
- Published
- 27 Nov 2018
- Last changed
- 17 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Exploit chance
- 0.7% in the next 30 daysHigher than 51% of CVEs. EPSS by FIRST, 10 Nov 2026
- Weakness
- Cross-site scripting (CWE-79)
- Attack
- Over the network · Needs an administrator account · Needs someone to click or open something
- Attacker can
- Read some data · Change some data
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
Umbraco CMSServers and applications · cpe:a:umbraco:umbraco_cms |
|