Advantech WebAccess 8.3.1 and 8.3.2 are vulnerable to cross-site scripting in the Bwmainleft.asp page. An attacker could leverage this vulnerability to disclose credentials amongst other things.
Severity
CVSS 3.0
5.4 medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
1.9% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-31)