CVE-2018-13387: Atlassian Jira

Medium severity, CVSS 6.1. EPSS: 1.5% chance of exploitation in the next 30 days.

The IncomingMailServers resource in Atlassian JIRA Server before version 7.6.7, from version 7.7.0 before version 7.7.5, from version 7.8.0 before version 7.8.5, from version 7.9.0 before version 7.9.3 and from version 7.10.0 before version 7.10.2 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the messagesThreshold parameter as the fix for CVE-2017-18039 was incomplete.

Affected products

• Atlassian Jira: before 7.6.7 (fixed in 7.6.7)
• Atlassian Jira Server: from 7.7.0, before 7.7.5 (fixed in 7.7.5); from 7.8.0, before 7.8.5 (fixed in 7.8.5); from 7.9.0, before 7.9.3 (fixed in 7.9.3); from 7.10.0, before 7.10.2 (fixed in 7.10.2)

Published 2018-07-16. Last modified 2026-06-17.