Decidim is a participatory democracy framework. Prior to 0.31.5 and in 0.32.0.rc1 before 0.32.0.rc2, JWT-backed API authentication is not bound to the organization selected by the current host, allowing a JWT issued for one tenant to be replayed against another tenant’s API to read participantDetails data and reach the proposal.answer mutation path. This issue is fixed in versions 0.31.5 and 0.32.0.rc2.
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
High
Complete data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 5
https://github.com/decidim/decidim/commit/023e206127c984a501345676e4789b31ddd11…
security-advisories@github.com
https://github.com/decidim/decidim/commit/226dc94894e6a3c030e4638c8b3441ee71996…
security-advisories@github.com
https://github.com/decidim/decidim/releases/tag/v0.31.5
security-advisories@github.com
https://github.com/decidim/decidim/releases/tag/v0.32.0.rc2
security-advisories@github.com
https://github.com/decidim/decidim/security/advisories/GHSA-r3v7-5x4c-c69q
security-advisories@github.com