{"id":"CVE-2009-0942","aliases":["EUVD-2009-0939","GHSA-7942-4w4p-577h"],"status":"published","title":"Help Viewer in Apple Mac OS X 10.4.11 and 10.5 before 10.5.7 does not verify that certain...","description":"Help Viewer in Apple Mac OS X 10.4.11 and 10.5 before 10.5.7 does not verify that certain Cascading Style Sheets (CSS) are located in a registered help book, which allows remote attackers to execute arbitrary code via a help: URL that triggers invocation of AppleScript files.","severity":{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.04193,"percentile":0.91012,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2009-05-13T15:14:00Z","modified":"2026-06-16T23:06:09Z","products":[{"vendor":"apple","product":"mac_os_x"},{"vendor":"apple","product":"mac_os_x_server"}],"references":[{"url":"http://support.apple.com/kb/HT3549","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"http://secunia.com/advisories/35074","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://lists.apple.com/archives/security-announce/2009/May/msg00002.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/34926","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.us-cert.gov/cas/techalerts/TA09-133A.html","tags":["third-party-advisory","x_refsource_CERT","x_transferred","US Government Resource"]},{"url":"http://www.vupen.com/english/advisories/2009/1297","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/50485","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.securitytracker.com/id?1022216","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-0942"},{"url":"https://github.com/advisories/GHSA-7942-4w4p-577h"}],"sources":{"cve":[{"id":"CVE-2009-0942","description":"Help Viewer in Apple Mac OS X 10.4.11 and 10.5 before 10.5.7 does not verify that certain Cascading Style Sheets (CSS) are located in a registered help book, which allows remote attackers to execute arbitrary code via a help: URL that triggers invocation of AppleScript files.","status":"published","published":"2009-05-13T15:14:00Z","modified":"2024-08-07T04:57:17.474Z","updated_at":"2026-11-02T14:33:26.302774Z"}],"euvd":[{"id":"EUVD-2009-0939","description":"Help Viewer in Apple Mac OS X 10.4.11 and 10.5 before 10.5.7 does not verify that certain Cascading Style Sheets (CSS) are located in a registered help book, which allows remote attackers to execute arbitrary code via a help: URL that triggers invocation of AppleScript files.","status":"published","published":"2009-05-13T15:14:00Z","modified":"2024-08-07T04:57:17Z","updated_at":"2026-11-03T01:39:23.782527Z"}],"ghsa":[{"id":"GHSA-7942-4w4p-577h","title":"Help Viewer in Apple Mac OS X 10.4.11 and 10.5 before 10.5.7 does not verify that certain...","description":"Help Viewer in Apple Mac OS X 10.4.11 and 10.5 before 10.5.7 does not verify that certain Cascading Style Sheets (CSS) are located in a registered help book, which allows remote attackers to execute arbitrary code via a help: URL that triggers invocation of AppleScript files.","status":"published","published":"2022-05-02T03:19:58Z","modified":"2023-01-31T05:08:06Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:49:19.883163Z"}],"nvd":[{"id":"CVE-2009-0942","description":"Help Viewer in Apple Mac OS X 10.4.11 and 10.5 before 10.5.7 does not verify that certain Cascading Style Sheets (CSS) are located in a registered help book, which allows remote attackers to execute arbitrary code via a help: URL that triggers invocation of AppleScript files.","status":"published","published":"2009-05-13T15:30:00.53Z","modified":"2026-06-16T23:06:09.62Z","cvss":[{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:01:35.136779Z"}]}}