CVE-2023-36465 json
Decidim has broken access control in templates
published 2023-10-05 3 y ago modified 2026-09-10 1 mo ago also GHSA-639h-86hw-qcjq , EUVD-2023-2663
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- 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. The `templates` module doesn't enforce the correct permissions, allowing any logged-in user to access to this functionality in the administration panel. An attacker could use this vulnerability to change, create or delete templates of surveys. This issue has been patched in version 0.26.8 and 0.27.4.
Patch / fix
- rubygems decidim 0.26.8, 0.27.4
- rubygems decidim-templates 0.26.8, 0.27.4
- decidim decidim 0.26.8, 0.27.4
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L |
| NVD | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L |
| GitHub | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| rubygems | decidim | >=0.23.2, <0.26.8 >=0.27.0, <0.27.4 |
0.26.8 0.27.4 |
| rubygems | decidim-templates | >=0.23.2, <0.26.8 >=0.27.0, <0.27.4 |
0.26.8 0.27.4 |
Affected products
- decidim decidim
Classification
References
-
github.com
/decidim/decidim/security/advisories/GHSA-639h-86hw-qcjq
web, vendor-advisory
-
github.com
/decidim/decidim/releases/tag/v0.26.8
web, release-notes
-
github.com
/decidim/decidim/releases/tag/v0.27.4
web, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2023-36465
advisory
-
github.com
/decidim/decidim
package
-
github.com
/rubysec/ruby-advisory-db/blob/master/gems/decidim-templates/CVE-2023-36465.yml
web
-
github.com
/rubysec/ruby-advisory-db/blob/master/gems/decidim/CVE-2023-36465.yml
web
Sources
- CVE List CVE-2023-36465
- GitHub Advisory GHSA-639h-86hw-qcjq
- NVD CVE-2023-36465
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.