CVE-2021-43406 is a high-severity vulnerability affecting FusionPBX versions prior to 4.5.30, where the 'fax_post_size' parameter is not properly constrained, allowing for the injection of risky characters. This flaw carries a CVSS score of 8.8, indicating a high potential for impact on confidentiality, integrity, and availability, and can be exploited remotely with low attack complexity and requiring only low privileges. While the vulnerability is significant, there is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or community discussion surrounding it.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.5.30CPE matchmatch criteria | cpe:2.3:a:fusionpbx:fusionpbx:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.