{"id":"CVE-2024-11023","aliases":["EUVD-2024-3188","GHSA-3wf4-68gx-mph8"],"status":"published","title":"Session Hijacking in Firebase JavaScript SDK","description":"Firebase JavaScript SDK utilizes a \"FIREBASE_DEFAULTS\" cookie to store configuration data, including an \"_authTokenSyncURL\" field used for session synchronization.  If this cookie field is preset via an attacker by any other method, the attacker can manipulate the \"_authTokenSyncURL\" to point to their own server and it would allow an actor to capture user session data transmitted by the SDK. We recommend upgrading Firebase JS SDK at least to 10.9.0.","severity":{"version":"4.0","score":5.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:L/SC:H/SI:H/SA:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00134,"percentile":0.02967,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2024-11-18T10:19:54Z","modified":"2026-10-28T02:30:43Z","fixes":[{"ecosystem":"npm","package":"firebase","fixed_in":["10.9.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"firebase","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"10.9.0"}]}]},{"source":"osv","ecosystem":"npm","package":"firebase","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"10.9.0"}]}]}],"products":[{"vendor":"firebase","product":"javascript sdk"},{"vendor":"google","product":"firebase_javascript_sdk"}],"references":[{"url":"https://github.com/firebase/firebase-js-sdk/pull/8056","tags":["Issue Tracking","Patch","fix","web"]},{"url":"https://firebase.google.com/support/release-notes/js#version_1090_-_march_14_2024","tags":["Release Notes","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-11023","tags":["advisory"]},{"url":"https://github.com/firebase/firebase-js-sdk/commit/245dd26e19b6c16aca7e1b7e597ed5784c2984ba","tags":["web"]},{"url":"https://github.com/advisories/GHSA-3wf4-68gx-mph8"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/11xxx/CVE-2024-11023.json","tags":["advisory"]},{"url":"https://github.com/firebase/firebase-js-sdk","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2024-11023","title":"Session Hijacking in Firebase JavaScript SDK","description":"Firebase JavaScript SDK utilizes a \"FIREBASE_DEFAULTS\" cookie to store configuration data, including an \"_authTokenSyncURL\" field used for session synchronization.  If this cookie field is preset via an attacker by any other method, the attacker can manipulate the \"_authTokenSyncURL\" to point to their own server and it would allow an actor to capture user session data transmitted by the SDK. We recommend upgrading Firebase JS SDK at least to 10.9.0.","status":"published","published":"2024-11-18T10:19:54.581Z","modified":"2024-11-18T15:02:10.044Z","cvss":[{"version":"4.0","score":5.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:L/SC:H/SI:H/SA:H","level":"medium","assessor":"cna"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:34:19.965827Z"}],"euvd":[{"id":"EUVD-2024-3188","description":"Firebase JavaScript SDK utilizes a \"FIREBASE_DEFAULTS\" cookie to store configuration data, including an \"_authTokenSyncURL\" field used for session synchronization.  If this cookie field is preset via an attacker by any other method, the attacker can manipulate the \"_authTokenSyncURL\" to point to their own server and it would allow an actor to capture user session data transmitted by the SDK. We recommend upgrading Firebase JS SDK at least to 10.9.0.","status":"published","published":"2024-11-18T10:19:54Z","modified":"2024-11-18T15:02:10Z","cvss":[{"version":"4.0","score":5.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:L/SC:H/SI:H/SA:H","level":"medium"}],"updated_at":"2026-11-03T00:04:57.054288Z"}],"ghsa":[{"id":"GHSA-3wf4-68gx-mph8","title":"Firebase JavaScript SDK allows attackers to manipulate the \"_authTokenSyncURL\" to point to their own server","description":"Firebase JavaScript SDK utilizes a \"FIREBASE_DEFAULTS\" cookie to store configuration data, including an \"_authTokenSyncURL\" field used for session synchronization.  If this cookie field is preset via an attacker by any other method, the attacker can manipulate the \"_authTokenSyncURL\" to point to their own server and it would allow am actor to capture user session data transmitted by the SDK. We recommend upgrading Firebase JS SDK at least to 10.9.0.","status":"published","published":"2024-11-18T12:30:42Z","modified":"2024-11-18T20:04:31Z","cvss":[{"version":"4.0","score":5.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:L/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:38:20.833758Z"}],"nvd":[{"id":"CVE-2024-11023","description":"Firebase JavaScript SDK utilizes a \"FIREBASE_DEFAULTS\" cookie to store configuration data, including an \"_authTokenSyncURL\" field used for session synchronization.  If this cookie field is preset via an attacker by any other method, the attacker can manipulate the \"_authTokenSyncURL\" to point to their own server and it would allow an actor to capture user session data transmitted by the SDK. We recommend upgrading Firebase JS SDK at least to 10.9.0.","status":"published","published":"2024-11-18T11:15:05.507Z","modified":"2026-06-17T06:56:54.263Z","cvss":[{"version":"4.0","score":5.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:L/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"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":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:10:37.632431Z"}],"osv":[{"id":"CVE-2024-11023","title":"Session Hijacking in Firebase JavaScript SDK","description":"Firebase JavaScript SDK utilizes a \"FIREBASE_DEFAULTS\" cookie to store configuration data, including an \"_authTokenSyncURL\" field used for session synchronization.  If this cookie field is preset via an attacker by any other method, the attacker can manipulate the \"_authTokenSyncURL\" to point to their own server and it would allow an actor to capture user session data transmitted by the SDK. We recommend upgrading Firebase JS SDK at least to 10.9.0.","status":"published","published":"2024-11-18T10:19:54.581Z","modified":"2026-10-28T02:30:43.014939413Z","cvss":[{"version":"4.0","score":5.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:L/SC:H/SI:H/SA:H","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:37.180532Z"},{"id":"GHSA-3wf4-68gx-mph8","title":"Firebase JavaScript SDK allows attackers to manipulate the \"_authTokenSyncURL\" to point to their own server","description":"Firebase JavaScript SDK utilizes a \"FIREBASE_DEFAULTS\" cookie to store configuration data, including an \"_authTokenSyncURL\" field used for session synchronization.  If this cookie field is preset via an attacker by any other method, the attacker can manipulate the \"_authTokenSyncURL\" to point to their own server and it would allow am actor to capture user session data transmitted by the SDK. We recommend upgrading Firebase JS SDK at least to 10.9.0.","status":"published","published":"2024-11-18T12:30:42Z","modified":"2025-07-23T22:12:58Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"},{"version":"4.0","score":5.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:L/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:36.092962Z"}]}}