Medium (4.3). EPSS 1.0% chance of exploitation in the next 30 days. Fixed in org.jenkins-ci.plugins:mailer 1.34.2, 408.vd726a.
A cross-site request forgery (CSRF) vulnerability in Jenkins Mailer Plugin 391.ve4a_38c1b_cf4b_ and earlier allows attackers to use the DNS used by the Jenkins instance to resolve an attacker-specified hostname.
Severity
CVSS 3.1
4.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS
1.0% chance of exploitation in the next 30 days; higher than 61% of CVEs (scores of 2026-10-31)