XWiki is an open-source wiki software platform. From 16.7.0 to 16.10.11, 17.4.4, or 17.7.0, in an instance which is using the XWiki Jetty package (XJetty), a context is exposed to statically access any file located in the webapp/ folder. It allows accessing files which might contains credentials. Fixed in 16.10.11, 17.4.4, and 17.7.0.
Exploitability
AV:NAC:LAT:NPR:NUI:NVulnerable System
VC:HVI:NVA:NSubsequent System
SC:NSI:NSA:N8.7/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NConfiguration