Is CVE-2018-13400 actively exploited?

No active exploitation of CVE-2018-13400 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-13400 be exploited remotely?

Yes. CVE-2018-13400 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2018-13400?

CVE-2018-13400 has a CVSS score of 4.7 (MEDIUM).

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MEDIUM

CVE-2018-13400

CWE-269Published: October 23, 2018· Updated: Jun 17, 2026

4.7

CVSS v3.1

Official Description

Several administrative resources in Atlassian Jira before version 7.6.9, 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, from version 7.10.0 before version 7.10.3, from version 7.11.0 before version 7.11.3, from version 7.12.0 before version 7.12.3, and before version 7.13.1 allow remote attackers who have obtained access to administrator's session to access certain administrative resources without needing to re-authenticate to pass "WebSudo" through an improper access control vulnerability.

NVD Source

Technical Analysis

CVE-2018-13400 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.