CVE-2023-34090 json
Decidim vulnerable to sensitive data disclosure
published 2023-07-11 3 y ago modified 2026-07-08 4 mo ago also GHSA-jm79-9pm4-vrw9 , EUVD-2023-2089
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 69%
- public exploits
- 0
- none known
Summary
Decidim is a participatory democracy framework, written in Ruby on Rails, originally developed for the Barcelona City government online and offline participation website. Decidim uses a third-party library named Ransack for filtering certain database collections (e.g., public meetings). By default, this library allows filtering on all data attributes and associations. This allows an unauthenticated remote attacker to exfiltrate non-public data from the underlying database of a Decidim instance (e.g., exfiltrating data from the user table). This issue may lead to Sensitive Data Disclosure. The problem was patched in version 0.27.3.
Patch / fix
- rubygems decidim 0.27.3
- rubygems decidim-meetings 0.27.3
- decidim decidim 0.27.3
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
1.26% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| rubygems | decidim | >=0.27.0, <0.27.3 |
0.27.3 |
| rubygems | decidim-meetings | >=0.27.0, <0.27.3 |
0.27.3 |
Affected products
- decidim decidim
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
github.com
/decidim/decidim/releases/tag/v0.27.3
web, patch, third-party-advisory
-
github.com
/decidim/decidim/security/advisories/GHSA-jm79-9pm4-vrw9
web, third-party-advisory
-
github.com
/decidim/decidim/security/advisories/GHSA-jm79-9pm4-vrw9#advisory-comment-81110
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-34090
advisory
-
github.com
/decidim/decidim
package
-
github.com
/rubysec/ruby-advisory-db/blob/master/gems/decidim-meetings/CVE-2023-34090.yml
web
-
github.com
/rubysec/ruby-advisory-db/blob/master/gems/decidim/CVE-2023-34090.yml
web
Sources
- CVE List CVE-2023-34090
- GitHub Advisory GHSA-jm79-9pm4-vrw9
- NVD CVE-2023-34090
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