High severity · published Jan 13, 2021
CVE-2021-21604
Jenkins 2.274 and earlier, LTS 2.263.1 and earlier allows attackers with permission to create or configure various objects to inject crafted content into Old Data Monitor that…
8.0
CVSS
1.7%
EPSS
No
On KEV
Description
Jenkins 2.274 and earlier, LTS 2.263.1 and earlier allows attackers with permission to create or configure various objects to inject crafted content into Old Data Monitor that results in the instantiation of potentially unsafe objects once discarded by an administrator.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JE
Jenkins · Jenkins
through 2.263.1; through 2.274 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-21604
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-21604
Vendor Advisory
https://www.jenkins.io/security/advisory/2021-01-13/#SECURITY-1923
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