Vulnerability Details : CVE-2021-34254
Umbraco CMS before 7.15.7 is vulnerable to Open Redirection due to insufficient url sanitization on booting.aspx.
Vulnerability category: Open redirect
Exploit prediction scoring system (EPSS) score for CVE-2021-34254
Probability of exploitation activity in the next 30 days: 0.08%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 32 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-34254
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
5.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:N |
8.6
|
4.9
|
NIST |
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST |
CWE ids for CVE-2021-34254
-
A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-34254
-
https://github.com/umbraco/Umbraco-CMS/issues/9782
v7: Open redirect security issue - insufficient url sanitization on booting.aspx · Issue #9782 · umbraco/Umbraco-CMS · GitHubIssue Tracking;Third Party Advisory
Products affected by CVE-2021-34254
- cpe:2.3:a:umbraco:umbraco_cms:*:*:*:*:*:*:*:*