{"id":"CVE-2021-43406","details":"An issue was discovered in FusionPBX before 4.5.30. The fax_post_size may have risky characters (it is not constrained to preset values).","modified":"2026-07-08T06:00:45.959069919Z","published":"2021-11-05T18:15:09.600Z","database_specific":{"unresolved_ranges":[{"extracted_events":[{"fixed":"4.5.30"}],"source":"CPE_RANGE","vendor_product":"fusionpbx:fusionpbx","cpes":["cpe:2.3:a:fusionpbx:fusionpbx:*:*:*:*:*:*:*:*"]},{"source":"DESCRIPTION","extracted_events":[{"fixed":"4.5.30"}]}]},"references":[{"type":"FIX","url":"https://github.com/fusionpbx/fusionpbx/commit/0377b2152c0e59c8f35297f9a9b6ee335a62d963"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/fusionpbx/fusionpbx","events":[{"introduced":"0"},{"fixed":"0377b2152c0e59c8f35297f9a9b6ee335a62d963"}],"database_specific":{"source":"REFERENCES"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43406.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}