CVE-2026-18756 - HumHub Community Edition 1.18.4 contains a reflected cross-site scripting vulnerability in the Space membership-request workflow. An attacker can place attacker-controlled button configuration in the options query-string parameter of space/membership/request-membership-form, lure an authenticated non-member into submitting the legitimate membership request form, and cause the server to return JavaScript containing attacker-controlled code. - 漏洞详情

漏洞编号：CVE-2026-18756

风险等级：未知

漏洞来源：CVE

CVE 编号：CVE-2026-18756

CNNVD 编号：-

厂商/产品：- / -

影响范围：-

CWE：CWE-79

发布/更新时间：2026-08-19 / 2026-08-28

漏洞描述

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

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