Broken Authentication in Atlassian Connect Express (ACE) from version 3.0.2 before version 6.6.0: Atlassian Connect Express is a Node.js package for building Atlassian Connect apps. Authentication between Atlassian products and the Atlassian Connect Express app occurs with a server-to-server JWT or a context JWT. Atlassian Connect Express versions from 3.0.2 before 6.6.0 erroneously accept context JWTs in lifecycle endpoints (such as installation) where only server-to-server JWTs should be accepted, permitting an attacker to send authenticated re-installation events to an app.
[
{
"product": "Atlassian Connect Express (ACE)",
"vendor": "Atlassian",
"versions": [
{
"lessThan": "unspecified",
"status": "affected",
"version": "3.0.2",
"versionType": "custom"
},
{
"lessThan": "6.6.0",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]