Multiple cross-site scripting (XSS) vulnerabilities in SocialEngine before 4.2.4 allow remote attackers to inject arbitrary web script or HTML via the (1) title parameter to music/create, (2) location parameter to events/create, or (3) search parameter to widget/index/content_id/*.

Multiple cross-site request forgery (CSRF) vulnerabilities in the (1) Forum, (2) Event, and (3) Classifieds plugins in SocialEngine before 4.2.4.

SocialEngine versions 7.8.0 and prior contain a SQL injection vulnerability in the /activity/index/get-memberall endpoint where user-supplied input passed via the text parameter is not sanitized before being incorporated into a SQL query. An unauthenticated remote attacker can exploit this vulnerability to read arbitrary data from the database, reset administrator account passwords, and gain unauthorized access to the Packages Manager in the Admin Panel, potentially enabling remote code execution.

SocialEngine versions 7.8.0 and prior contain a blind server-side request forgery vulnerability in the /core/link/preview endpoint where user-supplied input passed via the uri request parameter is not sanitized before being used to construct outbound HTTP requests. Authenticated remote attackers can supply arbitrary URLs including internal network addresses and loopback addresses to cause the server to issue HTTP requests to attacker-controlled destinations, enabling internal network enumeration and access to services not intended to be externally reachable.