HumHub vulnerabilities

HumHub 1.18.4 contains a stored cross-site scripting (XSS) vulnerability in the comment-deletion notification flow. A Space administrator can delete another user's comment, choose to notify the original author, and place HTML/JavaScript in the deletion reason.

HumHub Community Edition 1.18.4 contains a reflected XSS vulnerability in the space membership-request workflow. An attacker can place attacker-controlled button configuration in the options query-string parameter of the request-membership-form, lure an authenticated non-member into submitting the legitimate form, and cause the server to return JavaScript containing attacker-controlled code.

HumHub Community Edition 1.18.4 and 1.18.4-pl1 contain a stored Cross-Site Scripting (XSS) vulnerability in the oEmbed confirmation rendering workflow.

Vulnerability in HumHub (enterprise social network) allows any authenticated user to remove all members from any Space, regardless of their role. Missing access control in the member management controller.