Medium severity · published Sep 16, 2020
CVE-2020-2253
Jenkins Email Extension Plugin 2.75 and earlier does not perform hostname validation when connecting to the configured SMTP server
4.8
CVSS
0.7%
EPSS
No
On KEV
Description
Jenkins Email Extension Plugin 2.75 and earlier does not perform hostname validation when connecting to the configured SMTP server.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EE
Email Extension · Jenkins
through 2.75 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-2253
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-2253
Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/09/16/3
Vendor Advisory
https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1851
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