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CVE-2023-45303

8.4 · HIGH

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 se…

Published Oct 6, 2023CWE-74EPSS 1.05%

Overview

CVE-2023-45303 is a high-severity vulnerability. It was published on October 6, 2023 and has a CVSS 3.1 base score of 8.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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).

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reffreemarker.apache.org/docs/api/freemarker/template/utility/Execute.htmlRefherolab.usd.de/security-advisories/usd-2023-0010/Reffreemarker.apache.org/docs/api/freemarker/template/utility/Execute.htmlRefherolab.usd.de/security-advisories/usd-2023-0010/

How CyberStrike helps

Frequently asked questions

What is CVE-2023-45303?

CVE-2023-45303 is a high-severity vulnerability. It was published on October 6, 2023 and has a CVSS 3.1 base score of 8.4 (HIGH).

How severe is CVE-2023-45303?

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-45303?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-45303?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-45303 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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