Answer in brief
CVE-2023-48220 records a Medium severity (CVSS 5.7) vulnerability in Possibility to circumvent the invitation token expiry period. The current sources do not mark it as known exploited. The current feed maps decidim (rubygems), decidim (rubygems), decidim-admin (rubygems), decidim-admin (rubygems) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps decidim (rubygems), decidim (rubygems), decidim-admin (rubygems), decidim-admin (rubygems) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| decidimrubygems | >=0.0.1.alpha3 <0.26.9 | 0.26.9 |
| decidimrubygems | >=0.27.0 <0.27.5 | 0.27.5 |
| decidim-adminrubygems | >=0.0.1.alpha3 <0.26.9 | 0.26.9 |
| decidim-adminrubygems | >=0.27.0 <0.27.5 | 0.27.5 |
| decidim-systemrubygems | >=0.0.1.alpha3 <0.26.9 | 0.26.9 |
| decidim-systemrubygems | >=0.27.0 <0.27.5 | 0.27.5 |
| devise_invitablerubygems | >=0.4.rc3 <2.0.9 | 2.0.9 |
Published upstream
Feb 20, 2024
Evidence: source:osv:source_dates:source-dates:recordSource modified
Sep 10, 2026
Evidence: source:osv:source_dates:source-dates:recordFirst seen by HOL
Sep 10, 2026
### Impact The invites feature allows users to accept the invitation for an unlimited amount of time through the password reset functionality. When using the password reset functionality, the `devise_invitable` gem always accepts the pending invitation if the user has been invited as shown in this piece of code within the `devise_invitable` gem: https://github.com/scambra/devise_invitable/blob/41f58970ff76fb64382a9b9ea1bd530f7c3adab2/lib/devise_invitable/models.rb#L198 The only check done here 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 as explained in the gem's documentation: https://github.com/scambra/devise_invitable#model-configuration- > `invite_for`: The period the generated invitation token is valid. After this period, the invited resource won’t be able to accept the invitation. When `invite_for` is `0` (the default), the invitation won’t expire. Decidim sets this configuration to `2.weeks` so this configuration should be respected: https://github.com/decidim/decidim/blob/d2d390578050772d1bdb6d731395f1afc39dcbfc/decidim-core/config/initializers/devise.rb#L134 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. ### Patches Update `devise_invitable` to version `2.0.9` or above by running the following command: ``` $ bundle update devise_invitable ``` ### Workarounds The invitations can be cancelled directly from the database by running the following command from the Rails console: ``` > Decidim::User.invitation_not_accepted.update_all(invitation_token: nil) ``` ### References OWASP ASVS V4.0.3-2.3.1 This bug has existed in the `devise_invitable` gem since this commit which was first included in the `v0.4.rc3` release of this gem: https://github.com/scambra/devise_invitable/commit/94d859c7de0829bf63f679ae5dd3cab2b866a098 All versions since then are affected. This gem was first introduced at its version `~> 1.7.0` to the `decidim-admin` gem in this commit which was first included in the `v0.0.1.alpha3` release of Decidim: https://github.com/decidim/decidim/commit/073e60e2e4224dd81815a784002ebba30f2ebb34 It was first introduced at its version `~> 1.7.0` to the `decidim-system` gem in this commit which was also first included in the `v0.0.1.alpha3` release of Decidim: https://github.com/decidim/decidim/commit/b12800717a689c295a9ea680a38ca9f823d2c454 ### Credits This issue was discovered in City of Helsinki's security audit against Decidim 0.27 done during September 2023. The security audit was implemented by [Deloitte Finland](https://www2.deloitte.com/fi/fi.html).
Quoted source text, attributed separately from HOL analysis.