CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
13.0%
Decidim is a participatory democracy framework. Starting in version 0.4.rc3 and prior to version 2.0.9 of the devise_invitable
gem, the invites feature allows users to accept the invitation for an unlimited amount of time through the password reset functionality. This issue creates vulnerable dependencies starting in version 0.0.1.alpha3 and prior to versions 0.26.9, 0.27.5, and 0.28.0 of the decidim,
decidim-admin
, and decidim-system
gems. When using the password reset functionality, the devise_invitable
gem always accepts the pending invitation if the user has been invited. The only check done is if the user has been invited but the code does not ensure that the pending invitation is still valid as defined by the invite_for
expiry period. Decidim sets this configuration to 2.weeks
so this configuration should be respected. The bug is in the devise_invitable
gem and should be fixed there and the dependency should be upgraded in Decidim once the fix becomes available. devise_invitable
to version 2.0.9
and above fix this issue. Versions 0.26.9, 0.27.5, and 0.28.0 of the decidim,
decidim-admin
, and decidim-system
gems contain this fix. As a workaround, invitations can be cancelled directly from the database.
github.com/decidim/decidim/blob/d2d390578050772d1bdb6d731395f1afc39dcbfc/decidim-core/config/initializers/devise.rb#L134
github.com/decidim/decidim/commit/073e60e2e4224dd81815a784002ebba30f2ebb34
github.com/decidim/decidim/commit/b12800717a689c295a9ea680a38ca9f823d2c454
github.com/decidim/decidim/releases/tag/v0.26.9
github.com/decidim/decidim/releases/tag/v0.27.5
github.com/decidim/decidim/releases/tag/v0.28.0
github.com/decidim/decidim/security/advisories/GHSA-w3q8-m492-4pwp
github.com/scambra/devise_invitable/blob/41f58970ff76fb64382a9b9ea1bd530f7c3adab2/lib/devise_invitable/models.rb#L198
github.com/scambra/devise_invitable/commit/94d859c7de0829bf63f679ae5dd3cab2b866a098
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
13.0%