{"id":"CVE-2018-8915","aliases":["EUVD-2018-20523","GHSA-jc52-h9fr-wjmq"],"status":"published","title":"Cross-site scripting (XSS) vulnerability in Notification Center in Synology Calendar before 2.1.1...","description":"Cross-site scripting (XSS) vulnerability in Notification Center in Synology Calendar before 2.1.1-0502 allows remote authenticated users to inject arbitrary web script or HTML via title parameter.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-07","score":0.00787,"percentile":0.5641,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2018-05-10T13:00:00Z","modified":"2026-06-17T02:05:38Z","products":[{"vendor":"humhub","product":"calendar"},{"vendor":"synology","product":"calendar"}],"references":[{"url":"https://www.synology.com/en-global/support/security/Synology_SA_18_06","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-8915"},{"url":"https://github.com/advisories/GHSA-jc52-h9fr-wjmq"}],"sources":{"cve":[{"id":"CVE-2018-8915","description":"Cross-site scripting (XSS) vulnerability in Notification Center in Synology Calendar before 2.1.1-0502 allows remote authenticated users to inject arbitrary web script or HTML via title parameter.","status":"published","published":"2018-05-10T13:00:00Z","modified":"2024-09-16T23:51:35.408Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:35:04.540365Z"}],"euvd":[{"id":"EUVD-2018-20523","description":"Cross-site scripting (XSS) vulnerability in Notification Center in Synology Calendar before 2.1.1-0502 allows remote authenticated users to inject arbitrary web script or HTML via title parameter.","status":"published","published":"2018-05-10T13:00:00Z","modified":"2024-09-16T23:51:35Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-03T00:29:04.415682Z"}],"ghsa":[{"id":"GHSA-jc52-h9fr-wjmq","title":"Cross-site scripting (XSS) vulnerability in Notification Center in Synology Calendar before 2.1.1...","description":"Cross-site scripting (XSS) vulnerability in Notification Center in Synology Calendar before 2.1.1-0502 allows remote authenticated users to inject arbitrary web script or HTML via title parameter.","status":"published","published":"2022-05-13T01:31:43Z","modified":"2023-02-01T05:08:23Z","cvss":[{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:50:45.067904Z"}],"nvd":[{"id":"CVE-2018-8915","description":"Cross-site scripting (XSS) vulnerability in Notification Center in Synology Calendar before 2.1.1-0502 allows remote authenticated users to inject arbitrary web script or HTML via title parameter.","status":"published","published":"2018-05-10T13:29:00.437Z","modified":"2026-06-17T02:05:38.633Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:04:26.098615Z"}]}}