CVE-2026-45572
Decidim: HTML content blocks allow stored script execution
CVSS Score
4.8
EPSS Score
0.0%
EPSS Percentile
0th
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, an administrator with landing-page editing privileges can store arbitrary HTML and JavaScript in an HTML content block, which Decidim::ContentBlocks::HtmlCell#html_content renders without sanitization, causing the script to execute in visitors' browsers. This issue is fixed in versions 0.30.9, 0.31.5, and 0.32.0.rc2.
| CWE | CWE-94 |
| Vendor | decidim |
| Product | decidim |
| Published | Aug 6, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
decidim / decidim
< 0.30.9 >= 0.31.0.rc1, < 0.31.5 >= 0.32.0.rc1, < 0.32.0