What is CVE-2023-45303?

CVE-2023-45303 is a high-severity vulnerability in Thingsboard, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 8.4/10. Published 2023-10-06.

How severe is CVE-2023-45303?

High severity. CVSS v3 base score is 8.4 out of 10.

Is CVE-2023-45303 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Thingsboard

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).

EPSS: 0.009 (54.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H.

Affected products

Thingsboard
N/a — versions n/a

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

Public proof-of-concept exploits

References

cve@mitre.org (Exploit)
cve@mitre.org (Exploit)

Frequently asked questions

What is CVE-2023-45303?: CVE-2023-45303 is a high-severity vulnerability in Thingsboard, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 8.4/10. Published 2023-10-06.
How severe is CVE-2023-45303?: High severity. CVSS v3 base score is 8.4 out of 10.
Is CVE-2023-45303 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.