{"id":"CVE-2023-51219","aliases":["EUVD-2023-55941","GHSA-g545-rmg6-689p"],"status":"published","title":"A deep link validation issue in KakaoTalk 10.4.3 allowed a remote adversary to direct users to...","description":"A deep link validation issue in KakaoTalk 10.4.3 allowed a remote adversary to direct users to run any attacker-controlled JavaScript within a WebView. The impact was further escalated by triggering another WebView that leaked its access token in a HTTP request header. Ultimately, this access token could be used to take over another user's account and read her/his chat messages.","severity":{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"critical","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00523,"percentile":0.44803,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-444","CWE-79"],"published":"2024-06-03T00:00:00Z","modified":"2026-06-17T06:40:36Z","references":[{"url":"https://stulle123.github.io/posts/kakaotalk-account-takeover/","tags":["x_transferred"]},{"url":"https://news.ycombinator.com/item?id=40776880","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-51219"},{"url":"https://stulle123.github.io/posts/kakaotalk-account-takeover"},{"url":"https://github.com/advisories/GHSA-g545-rmg6-689p"}],"sources":{"cve":[{"id":"CVE-2023-51219","description":"A deep link validation issue in KakaoTalk 10.4.3 allowed a remote adversary to direct users to run any attacker-controlled JavaScript within a WebView. The impact was further escalated by triggering another WebView that leaked its access token in a HTTP request header. Ultimately, this access token could be used to take over another user's account and read her/his chat messages.","status":"published","published":"2024-06-03T00:00:00Z","modified":"2025-02-19T21:10:38.195Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:35:17.48054Z"}],"euvd":[{"id":"EUVD-2023-55941","description":"A deep link validation issue in KakaoTalk 10.4.3 allowed a remote adversary to direct users to run any attacker-controlled JavaScript within a WebView. The impact was further escalated by triggering another WebView that leaked its access token in a HTTP request header. Ultimately, this access token could be used to take over another user's account and read her/his chat messages.","status":"published","published":"2024-06-03T00:00:00Z","modified":"2025-02-19T21:10:38Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T20:53:26.792701Z"}],"ghsa":[{"id":"GHSA-g545-rmg6-689p","title":"A deep link validation issue in KakaoTalk 10.4.3 allowed a remote adversary to direct users to...","description":"A deep link validation issue in KakaoTalk 10.4.3 allowed a remote adversary to direct users to run any attacker-controller JavaScript within a WebView. The impact was further escalated by triggering another WebView that leaked its access token in a HTTP request header. Ultimately, this access token could be used to takeover another user's account and read her/his chat messages.","status":"published","published":"2024-06-03T21:30:44Z","modified":"2025-02-19T21:32:40Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","level":"medium"}],"cwes":["CWE-79","CWE-444"],"updated_at":"2026-11-02T14:59:59.716099Z"}],"nvd":[{"id":"CVE-2023-51219","description":"A deep link validation issue in KakaoTalk 10.4.3 allowed a remote adversary to direct users to run any attacker-controlled JavaScript within a WebView. The impact was further escalated by triggering another WebView that leaked its access token in a HTTP request header. Ultimately, this access token could be used to take over another user's account and read her/his chat messages.","status":"published","published":"2024-06-03T20:15:08.81Z","modified":"2026-06-17T06:40:36.65Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:09:17.205287Z"}]}}