Medium severity · published Nov 27, 2018
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…
4.8
CVSS
0.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UC
Umbraco Cms · Umbraco
7.12.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-17256
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-17256
Third Party Advisory
https://www.cspcert.ph/advisories/2018/CVE-2018-17256.html
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