Habitica is a habit tracker application that treats goals like a role-playing game. From 4.172.1 until 5.48.2, a query parameter on Habitica's /api/v3/groups/:groupId/members route is not sanitized before being interpreted as a regular expression. An authenticated caller can supply a computationally expensive regular expression that degrades application performance or halts Node.js processes.
This issue is fixed in version 5.48.2.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 3
https://github.com/HabitRPG/habitica/commit/7b7dc255dff1564935675399ff168e8a91b…
security-advisories@github.com
https://github.com/HabitRPG/habitica/releases/tag/v5.48.2
security-advisories@github.com
https://github.com/HabitRPG/habitica/security/advisories/GHSA-x772-22c9-gq58
security-advisories@github.com