Security Testing For Jira Extensions: A Complete Guide

Testing a Jira extension starts with understanding what the app is allowed to do inside Jira. Some extensions can read or change project data, act through granted permissions, process user information, or send data to services outside Atlassian. A security flaw in any of those paths can create risk for the Jira environment that relies on the app.

The concern is not limited to Atlassian products. Verizon’s 2026 DBIR found third-party involvement in 48% of breaches, following a 60 percent increase from the previous year.

For security testing for Jira extensions, app architecture matters as much as the vulnerability itself. Forge, Forge Remote, Connect, OAuth integrations, and Jira Data Center expose different trust boundaries and security responsibilities.

This guide looks at what should actually be tested, which Jira-specific weaknesses deserve attention, and what a meaningful security assessment should prove.

Atlassian Connect vs. Forge: Understanding the Architectural Security Differences

Before testing a Jira app, you need to know how it is built. A Forge app and a Connect app do not expose the same components, so applying one security checklist to both can leave important gaps in Atlassian Marketplace security.

Forge places more of the runtime and platform security under Atlassian’s control. Connect gives the vendor greater responsibility for the infrastructure and application environment. The architecture therefore determines which controls belong to Atlassian and which ones need to be tested in the app itself.

Source: https://qualysec.com/securi ...