How severe is CVE-2023-36465?

CVE-2023-36465 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.

Is CVE-2023-36465 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-36465?

CVE-2023-36465 affects Decidim. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-36465?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-36465 published?

CVE-2023-36465 was published on 2023-10-06 and last updated on 2026-06-17.

CVE-2023-36465

CVE-2023-36465 is a critical-severity vulnerability in Decidim with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-732.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Decidim
Published: 2023-10-06
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-36465?: 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.
How severe is CVE-2023-36465?: CVE-2023-36465 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.
Is CVE-2023-36465 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-36465?: CVE-2023-36465 affects Decidim. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-36465?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-36465 published?: CVE-2023-36465 was published on 2023-10-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:decidim:decidim:*:*:*:*:*:ruby:*:*

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