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Vulnerability details: VCID-9mua-au2n-9yhq
Vulnerability ID VCID-9mua-au2n-9yhq
Aliases CVE-2023-36465
GHSA-639h-86hw-qcjq
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.
Status Published
Exploitability 0.5
Weighted Severity 8.2
Risk 4.1
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-284 Improper Access Control
CWE-732 Incorrect Permission Assignment for Critical Resource
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.0007 https://api.first.org/data/v1/epss?cve=CVE-2023-36465
epss 0.0007 https://api.first.org/data/v1/epss?cve=CVE-2023-36465
epss 0.0007 https://api.first.org/data/v1/epss?cve=CVE-2023-36465
epss 0.0007 https://api.first.org/data/v1/epss?cve=CVE-2023-36465
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-639h-86hw-qcjq
cvssv3.1 7.1 https://github.com/decidim/decidim
generic_textual HIGH https://github.com/decidim/decidim
cvssv3.1 7.1 https://github.com/decidim/decidim/releases/tag/v0.26.8
cvssv3.1 9.1 https://github.com/decidim/decidim/releases/tag/v0.26.8
generic_textual HIGH https://github.com/decidim/decidim/releases/tag/v0.26.8
ssvc Track https://github.com/decidim/decidim/releases/tag/v0.26.8
cvssv3.1 7.1 https://github.com/decidim/decidim/releases/tag/v0.27.4
cvssv3.1 9.1 https://github.com/decidim/decidim/releases/tag/v0.27.4
generic_textual HIGH https://github.com/decidim/decidim/releases/tag/v0.27.4
ssvc Track https://github.com/decidim/decidim/releases/tag/v0.27.4
cvssv3 9.1 https://github.com/decidim/decidim/security/advisories/GHSA-639h-86hw-qcjq
cvssv3.1 7.1 https://github.com/decidim/decidim/security/advisories/GHSA-639h-86hw-qcjq
cvssv3.1 9.1 https://github.com/decidim/decidim/security/advisories/GHSA-639h-86hw-qcjq
cvssv3.1_qr HIGH https://github.com/decidim/decidim/security/advisories/GHSA-639h-86hw-qcjq
generic_textual HIGH https://github.com/decidim/decidim/security/advisories/GHSA-639h-86hw-qcjq
ssvc Track https://github.com/decidim/decidim/security/advisories/GHSA-639h-86hw-qcjq
cvssv3.1 7.1 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/decidim/CVE-2023-36465.yml
generic_textual HIGH https://github.com/rubysec/ruby-advisory-db/blob/master/gems/decidim/CVE-2023-36465.yml
cvssv3.1 7.1 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/decidim-templates/CVE-2023-36465.yml
generic_textual HIGH https://github.com/rubysec/ruby-advisory-db/blob/master/gems/decidim-templates/CVE-2023-36465.yml
cvssv3.1 7.1 https://nvd.nist.gov/vuln/detail/CVE-2023-36465
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2023-36465
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2023-36465
https://github.com/decidim/decidim
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/decidim/CVE-2023-36465.yml
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/decidim-templates/CVE-2023-36465.yml
https://nvd.nist.gov/vuln/detail/CVE-2023-36465
GHSA-639h-86hw-qcjq https://github.com/advisories/GHSA-639h-86hw-qcjq
GHSA-639h-86hw-qcjq https://github.com/decidim/decidim/security/advisories/GHSA-639h-86hw-qcjq
v0.26.8 https://github.com/decidim/decidim/releases/tag/v0.26.8
v0.27.4 https://github.com/decidim/decidim/releases/tag/v0.27.4
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L Found at https://github.com/decidim/decidim
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L Found at https://github.com/decidim/decidim/releases/tag/v0.26.8
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L Found at https://github.com/decidim/decidim/releases/tag/v0.26.8
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-19T18:47:43Z/ Found at https://github.com/decidim/decidim/releases/tag/v0.26.8
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L Found at https://github.com/decidim/decidim/releases/tag/v0.27.4
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L Found at https://github.com/decidim/decidim/releases/tag/v0.27.4
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-19T18:47:43Z/ Found at https://github.com/decidim/decidim/releases/tag/v0.27.4
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L Found at https://github.com/decidim/decidim/security/advisories/GHSA-639h-86hw-qcjq
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L Found at https://github.com/decidim/decidim/security/advisories/GHSA-639h-86hw-qcjq
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-19T18:47:43Z/ Found at https://github.com/decidim/decidim/security/advisories/GHSA-639h-86hw-qcjq
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L Found at https://github.com/rubysec/ruby-advisory-db/blob/master/gems/decidim/CVE-2023-36465.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L Found at https://github.com/rubysec/ruby-advisory-db/blob/master/gems/decidim-templates/CVE-2023-36465.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L Found at https://nvd.nist.gov/vuln/detail/CVE-2023-36465
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.21538
EPSS Score 0.0007
Published At June 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-11T17:23:08.913976+00:00 Vulnrichment Import https://github.com/cisagov/vulnrichment/blob/develop/2023/36xxx/CVE-2023-36465.json 38.6.0