CVE-2026-23891: Decidim has a cross-site scripting (XSS) in user name

Ghostwire Analysis — What This Means Practically

• Critical CVSS score indicates maximum severity — remote code execution, authentication bypass, or complete system compromise is likely possible.
• 1 proof-of-concept exploit available on GitHub. Public exploit code lowers the barrier for both researchers and attackers.

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.