{"cve":"CVE-2026-18430","nvd":{"published":"2026-08-19T16:17:06.463","modified":"2026-10-27T11:10:00.193","status":"Deferred","description":"HumHub 1.18.4 contains a stored cross-site scripting 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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N","score":7.2},"cvss_v3":null,"cwes":["CWE-79"],"references":["https://fluidattacks.com/es/advisories/personajes","https://github.com/humhub/humhub","https://github.com/humhub/humhub/pull/8365","https://fluidattacks.com/es/advisories/personajes"],"products":[],"source":"nvd","synced_at":"2026-10-27T11:28:04.741528231+00:00"},"epss":{"cve":"CVE-2026-18430","score":0.00501,"percentile":0.42618,"date":"2026-10-26"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}