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CVE-2023-48220

21
FAUCET Score

CVE-2023-48220 is a high-severity vulnerability affecting Decidim and its associated gems (decidim, decidim-admin, decidim-system) through a flaw in the devise_invitable gem versions prior to 2.0.9. The issue allows invited users to accept invitations indefinitely via the password reset functionality, bypassing the intended expiry period. With a CVSS score of 7.4 (HIGH), this vulnerability has a network attack vector and high impact on confidentiality and integrity, despite high attack complexity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.0.2, < 0.26.9CPE matchmatch criteria
cpe:2.3:a:decidim:decidim:*:*:*:*:*:ruby:*:*
>= 0.27.0, < 0.27.5CPE matchmatch criteria
cpe:2.3:a:decidim:decidim:*:*:*:*:*:ruby:*:*
0.0.1CPE matchmatch criteria
cpe:2.3:a:decidim:decidim:0.0.1:-:*:*:*:ruby:*:*
0.0.1CPE matchmatch criteria
cpe:2.3:a:decidim:decidim:0.0.1:alpha3:*:*:*:ruby:*:*
0.0.1CPE matchmatch criteria
cpe:2.3:a:decidim:decidim:0.0.1:alpha4:*:*:*:ruby:*:*

CVSS Data

CVSS version used by this source: 3.1

5.7MEDIUM

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
0.5
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.79%
Probability of exploitation in next 30 days
EPSS Percentile
52.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0079 is in the 21st percentile among its peer group of 8,918 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

github_advisorypatch availablevia nvd_reference
View patch
rubygemspatch availablevia ghsa
Product: decidimFixed in: 0.26.9
rubygemspatch availablevia ghsa
Product: decidim-adminFixed in: 0.26.9
rubygemspatch availablevia ghsa
Product: decidim-systemFixed in: 0.26.9
rubygemspatch availablevia ghsa
Product: devise_invitableFixed in: 2.0.9
rubygemspatch availablevia ghsa
Product: decidimFixed in: 0.27.5
rubygemspatch availablevia ghsa
Product: decidim-adminFixed in: 0.27.5
rubygemspatch availablevia ghsa
Product: decidim-systemFixed in: 0.27.5

Vendor Advisories (1)

rubygemsGHSA-w3q8-m492-4pwpmedium

Possibility to circumvent the invitation token expiry period

Feb 20, 2024

References

github.com / decidim/decidim/blob/d2d390578050772d1bdb6d731395f1afc39dcbfc/decidim-core/config/initializers/devise.rb
Product
github.com / decidim/decidim/commit/073e60e2e4224dd81815a784002ebba30f2ebb34
Patch
github.com / decidim/decidim/commit/b12800717a689c295a9ea680a38ca9f823d2c454
Patch
github.com / decidim/decidim/releases/tag/v0.26.9
Release Notes
github.com / decidim/decidim/releases/tag/v0.27.5
Release Notes
github.com / decidim/decidim/releases/tag/v0.28.0
Release Notes
github.com / decidim/decidim/security/advisories/GHSA-w3q8-m492-4pwp
MitigationPatchVendor Advisory
github.com / scambra/devise_invitable/blob/41f58970ff76fb64382a9b9ea1bd530f7c3adab2/lib/devise_invitable/models.rb
Product
github.com / scambra/devise_invitable/commit/94d859c7de0829bf63f679ae5dd3cab2b866a098
Patch