CVE-2018-5123: Mozilla Bugzilla

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

A third party website can access information available to a user with access to a restricted bug entry using the image generation in report.cgi in all Bugzilla versions prior to 4.4.

Affected products

• Mozilla Bugzilla: before 4.4 (fixed in 4.4)

Published 2019-04-29. Last modified 2026-06-17.