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CVE-2021-43405

Date: November 5, 2021

An issue was discovered in FusionPBX before 4.5.30. The fax_extension may have risky characters (it is not constrained to be numeric).

Language: PHP

Severity Score

Related Resources (4)

https://nvd.nist.gov/vuln/detail/CVE-2021-43405
https://github.com/fusionpbx/fusionpbx/commit/2d2869c1a1e874c46a8c3c5475614ce769bbbd59
http://packetstormsecurity.com/files/164795/FusionPBX-4.5.29-Remote-Code-Execution.html
https://www.mend.io/vulnerability-database/CVE-2021-43405

Severity Score

Weakness Type (CWE)

Improper Input Validation

CWE-20

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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