Description
Jenkins 2.73.1 and earlier, 2.83 and earlier provides information about Jenkins user accounts which is generally available to anyone with Overall/Read permissions via the /user/(username)/api remote API. This included e.g. Jenkins users' email addresses if the Mailer Plugin is installed. The remote API now no longer includes information beyond the most basic (user ID and name) unless the user requesting it is a Jenkins administrator.
Remediation
References
Related Vulnerabilities
Opencart Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2011-3763)
WordPress Plugin Child Theme Configurator Arbitrary File Disclosure (1.7.4)
Moodle Improper Link Resolution Before File Access ('Link Following') Vulnerability (CVE-2008-5153)
Oracle Database Server CVE-2008-0348 Vulnerability (CVE-2008-0348)