{"id":"CVE-2020-8176","aliases":["EUVD-2021-1124","GHSA-jqh7-w5pr-cr56"],"status":"published","title":"Cross-site scripting in @shopify/koa-shopify-auth","description":"A cross-site scripting vulnerability exists in koa-shopify-auth v3.1.61-v3.1.62 that allows an attacker to inject JS payloads into the `shop` parameter on the `/shopify/auth/enable_cookies` endpoint.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00984,"percentile":0.62626,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2020-07-02T18:35:21Z","modified":"2026-10-20T10:54:26Z","fixes":[{"ecosystem":"npm","package":"@shopify/koa-shopify-auth","fixed_in":["3.1.63"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"@shopify/koa-shopify-auth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1.61"},{"last_affected":"3.1.62"},{"fixed":"3.1.63"}]}]},{"source":"osv","ecosystem":"npm","package":"@shopify/koa-shopify-auth","ranges":[{"type":"SEMVER","events":[{"introduced":"3.1.61"},{"fixed":"3.1.63"}]}]}],"products":[{"vendor":"shopify","product":"koa-shopify-auth"}],"references":[{"url":"https://github.com/Shopify/quilt/pull/1455","tags":["x_refsource_MISC","x_transferred","Exploit","Patch","Third Party Advisory","fix","web"]},{"url":"https://hackerone.com/reports/881409","tags":["x_refsource_MISC","x_transferred","Permissions Required","report","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8176","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-jqh7-w5pr-cr56"}],"sources":{"cve":[{"id":"CVE-2020-8176","description":"A cross-site scripting vulnerability exists in koa-shopify-auth v3.1.61-v3.1.62 that allows an attacker to inject JS payloads into the `shop` parameter on the `/shopify/auth/enable_cookies` endpoint.","status":"published","published":"2020-07-02T18:35:21Z","modified":"2024-08-04T09:56:26.921Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:35:50.545879Z"}],"euvd":[{"id":"EUVD-2021-1124","description":"A cross-site scripting vulnerability exists in koa-shopify-auth v3.1.61-v3.1.62 that allows an attacker to inject JS payloads into the `shop` parameter on the `/shopify/auth/enable_cookies` endpoint.","status":"published","published":"2020-07-02T18:35:21Z","modified":"2024-08-04T09:56:26Z","updated_at":"2026-11-03T03:07:58.055641Z"}],"ghsa":[{"id":"GHSA-jqh7-w5pr-cr56","title":"Cross-site scripting in @shopify/koa-shopify-auth","description":"A cross-site scripting vulnerability exists in koa-shopify-auth v3.1.61-v3.1.62 that allows an attacker to inject JS payloads into the `shop` parameter on the `/shopify/auth/enable_cookies` endpoint.","status":"published","published":"2021-05-17T21:01:22Z","modified":"2023-01-29T05:01:46Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:36:25.064927Z"}],"nvd":[{"id":"CVE-2020-8176","description":"A cross-site scripting vulnerability exists in koa-shopify-auth v3.1.61-v3.1.62 that allows an attacker to inject JS payloads into the `shop` parameter on the `/shopify/auth/enable_cookies` endpoint.","status":"published","published":"2020-07-02T19:15:12.59Z","modified":"2026-06-17T03:25:59.717Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/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":"2026-11-02T14:06:08.145904Z"}],"osv":[{"id":"CVE-2020-8176","description":"A cross-site scripting vulnerability exists in koa-shopify-auth v3.1.61-v3.1.62 that allows an attacker to inject JS payloads into the `shop` parameter on the `/shopify/auth/enable_cookies` endpoint.","status":"published","published":"2020-07-02T19:15:12.59Z","modified":"2026-10-20T10:54:26.011805973Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:17.663289Z"},{"id":"GHSA-jqh7-w5pr-cr56","title":"Cross-site scripting in @shopify/koa-shopify-auth","description":"A cross-site scripting vulnerability exists in koa-shopify-auth v3.1.61-v3.1.62 that allows an attacker to inject JS payloads into the `shop` parameter on the `/shopify/auth/enable_cookies` endpoint.","status":"published","published":"2021-05-17T21:01:22Z","modified":"2023-11-08T04:04:15.234899Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:50.687609Z"}]}}