There is a Cross-site Scripting vulnerability in ArcGIS Server in versions 11.1 and below that may allow a remote, authenticated attacker to create a crafted link which onmouseover wont execute but could potentially render an image in the victims browser. The privileges required to execute this attack are high.
Severity
CVSS 3.1
3.4 low
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:L/A:N
EPSS
0.5% chance of exploitation in the next 30 days; higher than 41% of CVEs (scores of 2026-10-31)