CVE-2025-34282
Published: 17 October 2025
Summary
CVE-2025-34282 is a medium-severity SSRF (CWE-918) vulnerability in Thingsboard Thingsboard. Its CVSS base score is 6.9 (Medium).
Operationally, ranked in the top 18.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
ThingsBoard versions prior to 4.2.1 contain a server-side request forgery vulnerability, tracked as CWE-918, in the dashboard's Image Upload Gallery feature. The flaw allows an attacker to supply a malicious SVG file containing external references that the server may process, resulting in unintended outbound network requests.
An unauthenticated remote attacker can exploit the issue by uploading the crafted SVG through the affected gallery functionality. Successful exploitation enables the server to reach internal services or resources that would otherwise be inaccessible, with the CVSS 4.0 vector reflecting network attack reachability, low complexity, and impacts limited to limited integrity and confidentiality effects on the surrounding environment.
The issue is resolved in ThingsBoard 4.2.1, as noted in the corresponding GitHub release tag and pull request 13927; the VulnCheck advisory further documents the fix and associated remediation steps for affected deployments. The associated EPSS score remains low, with a current value of 0.0154 and a peak of 0.0162.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-34906
Vulnerability details
ThingsBoard versions < 4.2.1 contain a server-side request forgery (SSRF) vulnerability in the dashboard's Image Upload Gallery feature. An attacker can upload a malicious SVG file that references a remote URL. If the server processes the SVG file in a…
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way that parses external references, it may initiate unintended outbound requests. This can be used to access internal services or resources.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing attempts server-side requests to internal resources, identifying SSRF weaknesses for remediation.
Outbound connections to external resources can be monitored and limited at the boundary, reducing SSRF impact.
Validates server-side URLs and resource references to block SSRF attempts.
Detects server-side request forgery through monitoring of unexpected outbound connections.