The ManageFilters.jspa resource in Jira before version 7.13.3 and from version 8.0.0 before version 8.1.1 allows remote attackers to enumerate usernames via an incorrect authorisation check.
Severity
CVSS 3.1
5.3 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
13% chance of exploitation in the next 30 days; higher than 96% of CVEs (scores of 2026-10-31)