{"id":"CVE-2026-83546","aliases":["EUVD-2026-75957","GHSA-mvvr-5rcc-xqpx"],"status":"published","title":"CoolClock \u003c 4.3.8 - Contributor+ Stored XSS via Skin Class Attribute","description":"The CoolClock WordPress plugin before 4.3.8 does not properly escape a skin setting before outputting it within an HTML attribute, allowing users with contributor-level access and above to inject arbitrary web scripts that execute when the content is viewed.","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00431,"percentile":0.3777,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-09-11T06:00:06Z","modified":"2026-09-11T17:35:21Z","products":[{"vendor":"unknown","product":"coolclock"}],"references":[{"url":"https://wpscan.com/vulnerability/57fcdde1-1723-42e1-a6d0-16e63a532ac7/","tags":["exploit","vdb-entry","technical-description"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-83546"},{"url":"https://wpscan.com/vulnerability/57fcdde1-1723-42e1-a6d0-16e63a532ac7"},{"url":"https://github.com/advisories/GHSA-mvvr-5rcc-xqpx"}],"sources":{"cve":[{"id":"CVE-2026-83546","title":"CoolClock \u003c 4.3.8 - Contributor+ Stored XSS via Skin Class Attribute","description":"The CoolClock WordPress plugin before 4.3.8 does not properly escape a skin setting before outputting it within an HTML attribute, allowing users with contributor-level access and above to inject arbitrary web scripts that execute when the content is viewed.","status":"published","published":"2026-09-11T06:00:06.012Z","modified":"2026-09-11T10:11:46.329Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H","level":"medium","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:44:51.734189Z"}],"euvd":[{"id":"EUVD-2026-75957","description":"The CoolClock WordPress plugin before 4.3.8 does not properly escape a skin setting before outputting it within an HTML attribute, allowing users with contributor-level access and above to inject arbitrary web scripts that execute when the content is viewed.","status":"published","published":"2026-09-11T06:00:06Z","modified":"2026-09-11T10:11:46Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T17:28:22.994693Z"}],"ghsa":[{"id":"GHSA-mvvr-5rcc-xqpx","title":"The CoolClock WordPress plugin before 4.3.8 does not properly escape a skin setting before...","description":"The CoolClock WordPress plugin before 4.3.8 does not properly escape a skin setting before outputting it within an HTML attribute, allowing users with contributor-level access and above to inject arbitrary web scripts that execute when the content is viewed.","status":"published","published":"2026-09-11T09:31:23Z","modified":"2026-09-11T12:33:26Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:11:44.427999Z"}],"nvd":[{"id":"CVE-2026-83546","description":"The CoolClock WordPress plugin before 4.3.8 does not properly escape a skin setting before outputting it within an HTML attribute, allowing users with contributor-level access and above to inject arbitrary web scripts that execute when the content is viewed.","status":"published","published":"2026-09-11T07:16:47.05Z","modified":"2026-09-11T17:35:21.44Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:46.271848Z"}]}}