Medium (5.4) in twitter twitter-server. EPSS 86% chance of exploitation in the next 30 days. Fixed in com.twitter:twitter-server_2.12 20.12.0.
server/handler/HistogramQueryHandler.scala in Twitter TwitterServer (aka twitter-server) before 20.12.0, in some configurations, allows XSS via the /histograms endpoint.
Severity
CVSS 3.1
5.4 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
86% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)