CVE-2021-42643
CVSS v3
8.8
HIGH
EPSS Score
1.6 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
cmseasy V7.7.5_20211012 is affected by an arbitrary file write vulnerability. Through this vulnerability, a PHP script file is written to the website server, and accessing this file can lead to a code execution vulnerability.
Technical details
- Published
- 2022-05-17
Frequently asked questions
What is CVE-2021-42643?
cmseasy V7.7.5_20211012 is affected by an arbitrary file write vulnerability. Through this vulnerability, a PHP script file is written to the website server, and accessing this file can lead to a code execution vulnerability.
Is CVE-2021-42643 actively exploited?
Active exploitation of CVE-2021-42643 has not been confirmed. Its EPSS score was 1.6% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-42643?
CVE-2021-42643 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2021-42643 affecting your environment?
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