Vulnerability Details : CVE-2021-21608
Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not escape button labels in the Jenkins UI, resulting in a cross-site scripting (XSS) vulnerability exploitable by attackers with the ability to control button labels.
Vulnerability category: Cross site scripting (XSS)
Products affected by CVE-2021-21608
- cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
- cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*
Threat overview for CVE-2021-21608
Top countries where our scanners detected CVE-2021-21608
Top open port discovered on systems with this issue
80
IPs affected by CVE-2021-21608 17,022
Threat actors abusing to this issue?
Yes
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Exploit prediction scoring system (EPSS) score for CVE-2021-21608
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 20 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-21608
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:P/A:N |
6.8
|
2.9
|
NIST | |
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
NIST |
CWE ids for CVE-2021-21608
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by:
- jenkinsci-cert@googlegroups.com (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2021-21608
-
https://www.jenkins.io/security/advisory/2021-01-13/#SECURITY-2035
Jenkins Security Advisory 2021-01-13Vendor Advisory
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