HIGH 7.2 NVD
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
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.
References
- https://fluidattacks.com/es/advisories/turizo
- https://github.com/humhub/humhub
- https://github.com/humhub/humhub/pull/8381
This high severity vulnerability with a CVSS score of 7.2 was published on 2026-08-19 via NVD.
vulnfeed aggregates 11672 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.