{"schemaVersion":3,"id":"CVE-2020-7036","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"An XML External Entities (XXE)vulnerability in Callback Assist could allow an authenticated, remote attacker to gain read access to information that is stored on an affected system. The affected versions of Callback Assist includes all 4.0.x versions before 4.7.1.1 Patch 7.","dates":{"published":"2021-04-23T21:00:20.925Z","modified":"2024-09-17T01:45:37.197Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.1,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":8.1,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":4,"severity":"medium","vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00981,"percentile":0.61652,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00981},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00981,"percentile":0.61652}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00981,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00981,"percentile":0.61652}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-611","name":"Improper Restriction of XML External Entity Reference","description":"The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/611.html"}],"affected":[{"vendor":"avaya","product":"callback_assist","name":"callback assist","label":"callback_assist","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 4.0.x, < 4.7.1.1","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.0.0, < 4.7.1.1","noFixRecorded":false,"fixedIn":null},{"text":"4.7.1.1","noFixRecorded":false,"fixedIn":null},{"text":"4.7.1.1:patch1","noFixRecorded":false,"fixedIn":null},{"text":"4.7.1.1:patch2","noFixRecorded":false,"fixedIn":null},{"text":"4.7.1.1:patch3","noFixRecorded":false,"fixedIn":null},{"text":"4.7.1.1:patch4","noFixRecorded":false,"fixedIn":null},{"text":"4.7.1.1:patch5","noFixRecorded":false,"fixedIn":null},{"text":"4.7.1.1:patch6","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 4.0.x, < 4.7.1.1 | ≥ 4.0.0, < 4.7.1.1 | 4.7.1.1 | 4.7.1.1:patch1 | 4.7.1.1:patch2 | 4.7.1.1:patch3 | 4.7.1.1:patch4 | 4.7.1.1:patch5 | 4.7.1.1:patch6","eol":null,"hubHref":"/vendor/avaya/callback_assist"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://downloads.avaya.com/css/P8/documents/101075450","label":"downloads.avaya.com/css/P8/documents/101075450","hostname":"downloads.avaya.com","tags":["X Refsource CONFIRM","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-04-23T21:00:20.925Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-09-17T01:45:37.197Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":33,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T01:04:29.422Z","stale":false,"partial":false}}