High (7.1). EPSS 0.4% chance of exploitation in the next 30 days. Fixed in decidim 0.27.8.
Decidim is a participatory democracy framework. The version control feature used in resources is subject to potential XSS attack through a malformed URL. This vulnerability is fixed in 0.27.8.
Severity
CVSS 3.1
7.1 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
EPSS
0.4% chance of exploitation in the next 30 days; higher than 36% of CVEs (scores of 2026-10-31)