Description

Decidim is a participatory democracy framework. In versions below 0.30.5 and 0.31.0.rc1 through 0.31.0, a stored code execution vulnerability in the user name field allows a low-privileged attacker to execute arbitrary code in the context of any user who passively visits a comment page, resulting in high confidentiality and integrity impact across security boundaries. This issue has been fixed in versions 0.30.5 and 0.31.1.

INFO

Published Date :

2026-04-13T16:52:16.448Z

Last Modified :

2026-04-14T16:29:24.311Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-23891 vulnerability.

Vendors Products
Decidim
  • Decidim
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-23891.

URL Resource
https://github.com/decidim/decidim/releases/tag/v0.30.5 cve-icon cve-icon
https://github.com/decidim/decidim/releases/tag/v0.31.1 cve-icon cve-icon
https://github.com/decidim/decidim/security/advisories/GHSA-fc46-r95f-hq7g cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact