What is CVE-2021-43430?

CVE-2021-43430 is a high-severity vulnerability in Bigantsoft Bigant Office Messenger 5, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2022-04-07.

How severe is CVE-2021-43430?

High severity. CVSS v3 base score is 8.8 out of 10.

Arbitrary file upload in Bigantsoft Bigant Office Messenger 5

CVE-2021-43430

An Access Control vulnerability exists in BigAntSoft BigAnt office messenger 5.6 via im_webserver, which could let a malicious user upload PHP Trojan files.

Vulnerability class: Unrestricted File Upload

EPSS: 0.011 (63.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Bigantsoft Bigant_office_messenger_5 — versions 5.6
N/a — versions n/a

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-43430?: CVE-2021-43430 is a high-severity vulnerability in Bigantsoft Bigant Office Messenger 5, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2022-04-07.
How severe is CVE-2021-43430?: High severity. CVSS v3 base score is 8.8 out of 10.