{"cve":"CVE-2018-1000855","nvd":{"published":"2018-12-20T17:29:00.317","modified":"2026-06-17T01:33:11.120","status":"Modified","description":"easymon version 1.4 and earlier contains a Cross Site Scripting (XSS) vulnerability in Endpoint where monitoring is mounted that can result in Reflected XSS that affects Firefox. Can be used to steal cookies, depending on the cookie settings.. This attack appear to be exploitable via The victim must click on a crafted URL that contains the XSS payload. This vulnerability appears to have been fixed in 1.4.1 and later.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["https://github.com/basecamp/easymon/issues/26","https://github.com/basecamp/easymon/pull/25","https://github.com/basecamp/easymon/issues/26","https://github.com/basecamp/easymon/pull/25"],"products":["basecamp:easymon"],"source":"nvd","synced_at":"2026-10-19T20:54:36.112582389+00:00"},"epss":{"cve":"CVE-2018-1000855","score":0.00896,"percentile":0.59571,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-c289-47qf-rvrr","url":"https://osv.dev/vulnerability/GHSA-c289-47qf-rvrr","summary":"Cross Site Scripting (XSS) vulnerability in easymon","modified":"2024-02-16T08:12:15.871377Z","packages":[{"ecosystem":"RubyGems","name":"easymon","purl":"pkg:gem/easymon","ranges":["<1.4.1"],"fixed":["1.4.1"]}]}],"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."]}