CVE-2021-28023
CVSS v3
9.8
CRITICAL
EPSS Score
1.4 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Arbitrary file upload in Service import feature in ServiceTonic Helpdesk software version < 9.0.35937 allows a malicious user to execute JSP code by uploading a zip that extracts files in relative paths.
Technical details
- Published
- 2021-11-08
Frequently asked questions
What is CVE-2021-28023?
Arbitrary file upload in Service import feature in ServiceTonic Helpdesk software version < 9.0.35937 allows a malicious user to execute JSP code by uploading a zip that extracts files in relative paths.
Is CVE-2021-28023 actively exploited?
Active exploitation of CVE-2021-28023 has not been confirmed. Its EPSS score was 1.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-28023?
CVE-2021-28023 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-28023 affecting your environment?
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