{"id":"CVE-2020-8987","aliases":["EUVD-2020-29817","GHSA-v3cg-m279-6wh2"],"status":"published","title":"Avast AntiTrack before 1.5.1.172 and AVG Antitrack before 2.0.0.178 proxies traffic to HTTPS...","description":"Avast AntiTrack before 1.5.1.172 and AVG Antitrack before 2.0.0.178 proxies traffic to HTTPS sites but does not validate certificates, and thus a man-in-the-middle can host a malicious website using a self-signed certificate. No special action necessary by the victim using AntiTrack with \"Allow filtering of HTTPS traffic for tracking detection\" enabled. (This is the default configuration.)","severity":{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00507,"percentile":0.43592,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2020-03-09T16:38:32Z","modified":"2026-06-17T03:27:18Z","products":[{"vendor":"avast","product":"antitrack"},{"vendor":"avast","product":"avg_antitrack"}],"references":[{"url":"https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://www.davideade.com/2020/03/avast-antitrack.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8987"},{"url":"https://github.com/advisories/GHSA-v3cg-m279-6wh2"}],"sources":{"cve":[{"id":"CVE-2020-8987","description":"Avast AntiTrack before 1.5.1.172 and AVG Antitrack before 2.0.0.178 proxies traffic to HTTPS sites but does not validate certificates, and thus a man-in-the-middle can host a malicious website using a self-signed certificate. No special action necessary by the victim using AntiTrack with \"Allow filtering of HTTPS traffic for tracking detection\" enabled. (This is the default configuration.)","status":"published","published":"2020-03-09T16:38:32Z","modified":"2024-08-04T10:19:19.752Z","updated_at":"2026-11-02T14:35:50.88562Z"}],"euvd":[{"id":"EUVD-2020-29817","description":"Avast AntiTrack before 1.5.1.172 and AVG Antitrack before 2.0.0.178 proxies traffic to HTTPS sites but does not validate certificates, and thus a man-in-the-middle can host a malicious website using a self-signed certificate. No special action necessary by the victim using AntiTrack with \"Allow filtering of HTTPS traffic for tracking detection\" enabled. (This is the default configuration.)","status":"published","published":"2020-03-09T16:38:32Z","modified":"2024-08-04T10:19:19Z","updated_at":"2026-11-03T03:07:55.71159Z"}],"ghsa":[{"id":"GHSA-v3cg-m279-6wh2","title":"Avast AntiTrack before 1.5.1.172 and AVG Antitrack before 2.0.0.178 proxies traffic to HTTPS...","description":"Avast AntiTrack before 1.5.1.172 and AVG Antitrack before 2.0.0.178 proxies traffic to HTTPS sites but does not validate certificates, and thus a man-in-the-middle can host a malicious website using a self-signed certificate. No special action necessary by the victim using AntiTrack with \"Allow filtering of HTTPS traffic for tracking detection\" enabled. (This is the default configuration.)","status":"published","published":"2022-05-24T17:10:30Z","modified":"2023-01-29T05:01:42Z","updated_at":"2026-11-02T14:44:53.556707Z"}],"nvd":[{"id":"CVE-2020-8987","description":"Avast AntiTrack before 1.5.1.172 and AVG Antitrack before 2.0.0.178 proxies traffic to HTTPS sites but does not validate certificates, and thus a man-in-the-middle can host a malicious website using a self-signed certificate. No special action necessary by the victim using AntiTrack with \"Allow filtering of HTTPS traffic for tracking detection\" enabled. (This is the default configuration.)","status":"published","published":"2020-03-09T17:15:12.307Z","modified":"2026-06-17T03:27:18.15Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:05:55.32877Z"}]}}