CVE-2026-18756
7.2
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| HumHub | HumHub | 1.18.4 | affected |
Weaknesses
- CWE-79: CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
References
- https://fluidattacks.com/es/advisories/turizo
- https://github.com/humhub/humhub
- https://github.com/humhub/humhub/pull/8381
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