CVE-2021-43430
CVSS v3
8.8
HIGH
EPSS Score
1.1 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical details
- Published
- 2022-04-07
Frequently asked questions
What is 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.
Is CVE-2021-43430 actively exploited?
Active exploitation of CVE-2021-43430 has not been confirmed. Its EPSS score was 1.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-43430?
CVE-2021-43430 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2021-43430 affecting your environment?
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