Is CVE-2015-8399 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2015-8399, but active exploitation has not been confirmed.

Can CVE-2015-8399 be exploited remotely?

Yes. CVE-2015-8399 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2015-8399?

CVE-2015-8399 has a CVSS score of 4.3 (MEDIUM).

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MEDIUMPOC

CVE-2015-8399

CWE-200Published: April 11, 2016· Updated: Jun 17, 2026

4.3

CVSS v3.1

Official Description

Atlassian Confluence before 5.8.17 allows remote authenticated users to read configuration files via the decoratorName parameter to (1) spaces/viewdefaultdecorator.action or (2) admin/viewdefaultdecorator.action.

NVD Source

Technical Analysis

CVE-2015-8399 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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

A proof-of-concept (PoC) exploit exists for CVE-2015-8399. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.