{"id":"CVE-2018-20858","aliases":["EUVD-2019-0120","GHSA-3j5x-7ccf-ppgm","PYSEC-2019-219"],"status":"published","title":"Cross-site scripting in recommender-xblock","description":"Recommender before 2018-07-18 allows XSS.","severity":{"version":"3.0","score":6.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00855,"percentile":0.58615,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2019-08-09T15:34:25Z","modified":"2026-10-20T10:48:05Z","fixes":[{"ecosystem":"PyPI","package":"recommender-xblock","fixed_in":["1.3.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"recommender-xblock","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.1"}]}]},{"source":"osv","ecosystem":"PyPI","package":"recommender-xblock","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.1"}]}]},{"source":"osv","ecosystem":"PyPI","package":"recommender-xblock","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.1"}]}]}],"products":[{"vendor":"edx","product":"recommender"}],"references":[{"url":"https://github.com/edx/RecommenderXBlock/pull/2","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://groups.google.com/forum/#%21topic/openedx-announce/SF8Sn6MuUTg","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-20858","tags":["advisory"]},{"url":"https://groups.google.com/forum/#!topic/openedx-announce/SF8Sn6MuUTg","tags":["web"]},{"url":"https://github.com/advisories/GHSA-3j5x-7ccf-ppgm","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/recommender-xblock/PYSEC-2019-219.yaml","tags":["web"]},{"url":"https://github.com/openedx/RecommenderXBlock","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2018-20858","description":"Recommender before 2018-07-18 allows XSS.","status":"published","published":"2019-08-09T15:34:25Z","modified":"2024-08-05T12:12:29.74Z","updated_at":"2026-11-02T14:34:59.872731Z"}],"euvd":[{"id":"EUVD-2019-0120","description":"Recommender before 2018-07-18 allows XSS.","status":"published","published":"2019-08-09T15:34:25Z","modified":"2024-08-05T12:12:29Z","updated_at":"2026-11-03T02:39:29.197639Z"}],"ghsa":[{"id":"GHSA-3j5x-7ccf-ppgm","title":"Cross-site scripting in recommender-xblock","description":"Recommender before 1.3.1 allows XSS. It is possible for a learner to craft a fake resource to recommender, that includes script which could possibly steal credentials from staff if they are lured into viewing the recommended resource.","status":"published","published":"2019-08-21T16:15:33Z","modified":"2024-10-26T18:36:33Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"},{"version":"3.0","score":6.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:38:13.90937Z"}],"nvd":[{"id":"CVE-2018-20858","description":"Recommender before 2018-07-18 allows XSS.","status":"published","published":"2019-08-09T16:15:10.803Z","modified":"2026-06-17T01:53:36.78Z","cvss":[{"version":"3.0","score":6.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:04:59.278647Z"}],"osv":[{"id":"CVE-2018-20858","description":"Recommender before 2018-07-18 allows XSS.","status":"published","published":"2019-08-09T16:15:10.803Z","modified":"2026-10-20T10:48:05.26047435Z","cvss":[{"version":"3.0","score":6.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:09.145458Z"},{"id":"GHSA-3j5x-7ccf-ppgm","title":"Cross-site scripting in recommender-xblock","description":"Recommender before 1.3.1 allows XSS. It is possible for a learner to craft a fake resource to recommender, that includes script which could possibly steal credentials from staff if they are lured into viewing the recommended resource.","status":"published","published":"2019-08-21T16:15:33Z","modified":"2024-10-26T18:36:32Z","cvss":[{"version":"3.0","score":6.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"},{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:35.747385Z"},{"id":"PYSEC-2019-219","description":"Recommender before 2018-07-18 allows XSS.","status":"published","published":"2019-08-09T16:15:00Z","modified":"2023-11-08T04:00:13.014875Z","updated_at":"2026-11-02T15:52:52.192131Z"}]}}