Decidim up to 0.30.8/0.31.4/0.32.0.rc1 Census Logs census_logs improper authorization

Summaryinfo

A vulnerability, which was classified as problematic, was found in Decidim up to 0.30.8/0.31.4/0.32.0.rc1. This issue affects some unknown processing of the file /admin/csv_census/census_logs of the component Census Logs. The manipulation results in improper authorization. This vulnerability was named CVE-2026-45415. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Decidim up to 0.30.8/0.31.4/0.32.0.rc1. It has been classified as problematic. Affected is some unknown functionality of the file /admin/csv_census/census_logs of the component Census Logs. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on integrity, and availability. CVE summarizes:

Decidim is a participatory democracy framework. Prior to 0.30.9, from 0.31.0 before 0.31.5, and in 0.32.0.rc1 before 0.32.0.rc2, the /admin/csv_census/census_logs record-management endpoints do not enforce full administrator authorization before rendering or mutating Decidim::Verifications::CsvDatum, allowing a participant manager to create, alter, or remove census records. This issue is fixed in versions 0.30.9, 0.31.5, and 0.32.0.rc2.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-45415 since 05/12/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1548.002.

Upgrading to version 0.30.9, 0.31.5 or 0.32.0.rc2 eliminates this vulnerability.

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Productinfo

Name

• Decidim

Version

• 0.30.0
• 0.30.1
• 0.30.2
• 0.30.3
• 0.30.4
• 0.30.5
• 0.30.6
• 0.30.7
• 0.30.8
• 0.31.0
• 0.31.1
• 0.31.2
• 0.31.3
• 0.31.4
• 0.32.0.rc1

Website

• Product: https://github.com/decidim/decidim/

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