{"id":"CVE-2018-15670","aliases":["EUVD-2018-7541","GHSA-cqgx-5gh9-5jwx"],"status":"published","title":"An issue was discovered in Bloop Airmail 3 3.5.9 for macOS. Its primary WebView instance...","description":"An issue was discovered in Bloop Airmail 3 3.5.9 for macOS. Its primary WebView instance implements \"webView:decidePolicyForNavigationAction:request:frame:decisionListener:\" such that OpenURL is the default URL handler. A navigation request is processed by the default URL handler only if the currentEvent is NX_LMOUSEUP or NX_OMOUSEUP. An attacker may abuse HTML elements with an EventHandler for a chance to validate navigation requests for URLs that are processed during the NX_LMOUSEUP event triggered by clicking an email.","severity":{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.00736,"percentile":0.5471,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2018-08-21T23:00:00Z","modified":"2026-06-17T01:42:54Z","products":[{"vendor":"bloop","product":"airmail"}],"references":[{"url":"https://versprite.com/advisories/airmail-3-for-mac-4/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-15670"},{"url":"https://github.com/advisories/GHSA-cqgx-5gh9-5jwx"}],"sources":{"cve":[{"id":"CVE-2018-15670","description":"An issue was discovered in Bloop Airmail 3 3.5.9 for macOS. Its primary WebView instance implements \"webView:decidePolicyForNavigationAction:request:frame:decisionListener:\" such that OpenURL is the default URL handler. A navigation request is processed by the default URL handler only if the currentEvent is NX_LMOUSEUP or NX_OMOUSEUP. An attacker may abuse HTML elements with an EventHandler for a chance to validate navigation requests for URLs that are processed during the NX_LMOUSEUP event triggered by clicking an email.","status":"published","published":"2018-08-21T23:00:00Z","modified":"2024-08-05T10:01:54.379Z","updated_at":"2026-11-02T14:35:03.825765Z"}],"euvd":[{"id":"EUVD-2018-7541","description":"An issue was discovered in Bloop Airmail 3 3.5.9 for macOS. Its primary WebView instance implements \"webView:decidePolicyForNavigationAction:request:frame:decisionListener:\" such that OpenURL is the default URL handler. A navigation request is processed by the default URL handler only if the currentEvent is NX_LMOUSEUP or NX_OMOUSEUP. An attacker may abuse HTML elements with an EventHandler for a chance to validate navigation requests for URLs that are processed during the NX_LMOUSEUP event triggered by clicking an email.","status":"published","published":"2018-08-21T23:00:00Z","modified":"2024-08-05T10:01:54Z","updated_at":"2026-11-03T02:39:44.201018Z"}],"ghsa":[{"id":"GHSA-cqgx-5gh9-5jwx","title":"An issue was discovered in Bloop Airmail 3 3.5.9 for macOS. Its primary WebView instance...","description":"An issue was discovered in Bloop Airmail 3 3.5.9 for macOS. Its primary WebView instance implements \"webView:decidePolicyForNavigationAction:request:frame:decisionListener:\" such that OpenURL is the default URL handler. A navigation request is processed by the default URL handler only if the currentEvent is NX_LMOUSEUP or NX_OMOUSEUP. An attacker may abuse HTML elements with an EventHandler for a chance to validate navigation requests for URLs that are processed during the NX_LMOUSEUP event triggered by clicking an email.","status":"published","published":"2022-05-13T01:06:29Z","modified":"2023-02-01T05:02:55Z","cvss":[{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:49:59.47413Z"}],"nvd":[{"id":"CVE-2018-15670","description":"An issue was discovered in Bloop Airmail 3 3.5.9 for macOS. Its primary WebView instance implements \"webView:decidePolicyForNavigationAction:request:frame:decisionListener:\" such that OpenURL is the default URL handler. A navigation request is processed by the default URL handler only if the currentEvent is NX_LMOUSEUP or NX_OMOUSEUP. An attacker may abuse HTML elements with an EventHandler for a chance to validate navigation requests for URLs that are processed during the NX_LMOUSEUP event triggered by clicking an email.","status":"published","published":"2018-08-21T23:29:00.597Z","modified":"2026-06-17T01:42:54.47Z","cvss":[{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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-20"],"updated_at":"2026-11-02T14:04:36.842579Z"}]}}