Decidim: >> Decidim >> 0.27.6 Security Vulnerabilities
Decidim is a participatory democracy framework. Starting in version 0.19.0 and prior to versions 0.30.5 and 0.31.1, a vulnerability allows any registered and authenticated user to accept or reject any amendments. The impact is on any users who have created proposals where the amendments feature is enabled. This also elevates the user accepting the amendment as the author of the original proposal as people amending proposals are provided coauthorship on the coauthorable resources. Versions 0.30.5 and 0.31.1 fix the issue. As a workaround, disable amendment reactions for the amendable component (e.g. proposals).
CVSS Score
7.5
EPSS Score
0.0
Published
2026-04-21
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.
CVSS Score
9.3
EPSS Score
0.0
Published
2026-04-13
decidim is a Free Open-Source participatory democracy, citizen participation and open government for cities and organizations. The admin panel is subject to potential Cross-site scripting (XSS) attach in case an admin assigns a valuator to a proposal, or does any other action that generates an admin activity log where one of the resources has an XSS crafted. This issue has been addressed in release version 0.27.7, 0.28.2, and newer. Users are advised to upgrade. Users unable to upgrade may redirect the pages /admin and /admin/logs to other admin pages to prevent this access (i.e. `/admin/organization/edit`).
CVSS Score
6.8
EPSS Score
0.006
Published
2024-09-16
decidim is a Free Open-Source participatory democracy, citizen participation and open government for cities and organizations. The WYSWYG editor QuillJS is subject to potential XSS attach in case the attacker manages to modify the HTML before being uploaded to the server. The attacker is able to change e.g. to <svg onload=alert('XSS')> if they know how to craft these requests themselves. This issue has been addressed in release version 0.27.7. All users are advised to upgrade. Users unable to upgrade should review the user accounts that have access to the admin panel (i.e. general Administrators, and participatory space's Administrators) and remove access to them if they don't need it. Disable the "Enable rich text editor for participants" setting in the admin dashboard
CVSS Score
5.4
EPSS Score
0.006
Published
2024-09-16