{"cve":"CVE-2018-18819","nvd":{"published":"2019-11-12T14:15:11.263","modified":"2026-06-17T01:47:57.947","status":"Modified","description":"A vulnerability in the web conference chat component of MiCollab, versions 7.3 PR6 (7.3.0.601) and earlier, and 8.0 (8.0.0.40) through 8.0 SP2 FP2 (8.0.2.202), and MiVoice Business Express versions 7.3 PR3 (7.3.1.302) and earlier, and 8.0 (8.0.0.40) through 8.0 SP2 FP1 (8.0.2.202), could allow creation of unauthorized chat sessions, due to insufficient access controls. A successful exploit could allow execution of arbitrary commands.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3},"cwes":["CWE-863"],"references":["https://www.mitel.com/support/security-advisories","https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-18-0012","https://www.mitel.com/support/security-advisories","https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-18-0012"],"products":["mitel:micollab","mitel:mivoice_business_express"],"source":"nvd","synced_at":"2026-10-19T20:59:25.448946135+00:00"},"epss":{"cve":"CVE-2018-18819","score":0.0143,"percentile":0.7302,"date":"2026-11-01"},"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."]}