SolarWinds N-central through 12.3 does not include the HTTPOnly flag in the Set-Cookie header for the session cookie, which makes it easier for remote attackers to obtain potentially sensitive information via script access to this cookie.
SolarWinds N-Central version 12.3 GA and lower does not set the JSESSIONID attribute to HTTPOnly. This makes it possible to influence the cookie with javascript. An attacker could send the user to a prepared webpage or by influencing JavaScript to the extract the JESSIONID. This could then be forwarded to the attacker.