CVE-2023-45303
CVSS v3
8.8
HIGH
EPSS Score
1.0 %
exploit probability, as of 2026-10-07
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
ThingsBoard before 3.5 allows Server-Side Template Injection if users are allowed to modify an email template, because Apache FreeMarker supports freemarker.template.utility.Execute (for content sent to the /api/admin/settings endpoint).
Technical details
- Published
- 2023-10-06
Frequently asked questions
What is CVE-2023-45303?
ThingsBoard before 3.5 allows Server-Side Template Injection if users are allowed to modify an email template, because Apache FreeMarker supports freemarker.template.utility.Execute (for content sent to the /api/admin/settings endpoint).
Is CVE-2023-45303 actively exploited?
Active exploitation of CVE-2023-45303 has not been confirmed. Its EPSS score was 1.0% on 2026-10-07, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2023-45303?
CVE-2023-45303 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2023-45303 affecting your environment?
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