{"id":"CVE-1999-1357","aliases":["EUVD-1999-1338","GHSA-5p87-h429-g84q"],"status":"published","title":"Netscape Communicator 4.04 through 4.7 (and possibly other versions) in various UNIX operating...","description":"Netscape Communicator 4.04 through 4.7 (and possibly other versions) in various UNIX operating systems converts the 0x8b character to a \"\u003c\" sign, and the 0x9b character to a \"\u003e\" sign, which could allow remote attackers to attack other clients via cross-site scripting (CSS) in CGI programs that do not filter these characters.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02035,"percentile":0.81231,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"1999-10-05T04:00:00Z","modified":"2026-06-16T21:50:16Z","products":[{"vendor":"netscape","product":"communicator"}],"references":[{"url":"http://marc.info/?l=bugtraq\u0026m=93915331626185\u0026w=2","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-1999-1357"},{"url":"https://github.com/advisories/GHSA-5p87-h429-g84q"}],"sources":{"cve":[{"id":"CVE-1999-1357","description":"Netscape Communicator 4.04 through 4.7 (and possibly other versions) in various UNIX operating systems converts the 0x8b character to a \"\u003c\" sign, and the 0x9b character to a \"\u003e\" sign, which could allow remote attackers to attack other clients via cross-site scripting (CSS) in CGI programs that do not filter these characters.","status":"published","published":"2001-09-12T04:00:00Z","modified":"2024-08-01T17:11:03.196Z","updated_at":"2026-11-02T14:33:53.295018Z"}],"euvd":[{"id":"EUVD-1999-1338","description":"Netscape Communicator 4.04 through 4.7 (and possibly other versions) in various UNIX operating systems converts the 0x8b character to a \"\u003c\" sign, and the 0x9b character to a \"\u003e\" sign, which could allow remote attackers to attack other clients via cross-site scripting (CSS) in CGI programs that do not filter these characters.","status":"published","published":"2001-09-12T04:00:00Z","modified":"2024-08-01T17:11:03Z","updated_at":"2026-11-03T03:50:42.896161Z"}],"ghsa":[{"id":"GHSA-5p87-h429-g84q","title":"Netscape Communicator 4.04 through 4.7 (and possibly other versions) in various UNIX operating...","description":"Netscape Communicator 4.04 through 4.7 (and possibly other versions) in various UNIX operating systems converts the 0x8b character to a \"\u003c\" sign, and the 0x9b character to a \"\u003e\" sign, which could allow remote attackers to attack other clients via cross-site scripting (CSS) in CGI programs that do not filter these characters.","status":"published","published":"2022-04-30T18:12:18Z","modified":"2023-01-30T05:04:45Z","updated_at":"2026-11-02T14:47:06.883845Z"}],"nvd":[{"id":"CVE-1999-1357","description":"Netscape Communicator 4.04 through 4.7 (and possibly other versions) in various UNIX operating systems converts the 0x8b character to a \"\u003c\" sign, and the 0x9b character to a \"\u003e\" sign, which could allow remote attackers to attack other clients via cross-site scripting (CSS) in CGI programs that do not filter these characters.","status":"published","published":"1999-10-05T04:00:00Z","modified":"2026-06-16T21:50:16.097Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T13:58:40.923898Z"}]}}