CVE-2025-34281: thingsboard before 4.2.1 (exclusive), 0 to before 4.2.1

CVE-2025-34281. CVSS 3.1 base score 5.4 (MEDIUM, NVD). EPSS 0.00378 (percentile 0.30342), scored 19-Oct-2026.

Affected technology

thingsboard · before 4.2.1 (exclusive)
thingsboard

thingsboard · 0 to before 4.2.1
thingsboard

Description’s affected range: versions prior to v4.2.1

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 4.0): Network (remote) · Low privileges required · Passive user interaction

What an attacker can do

An authenticated user can upload malicious SVG images via the "Image Gallery", leading to a Stored Cross-Site Scripting (XSS) vulnerability. Source advisory’s CVSS 4.0 assessment (base score 6.2/10) rates confidentiality, integrity and availability impact as none.

Published 19-Oct-2026 17:59 UTC

CWE: CWE-79
CCR priority: 21.7 /100 (P4)
CVSS 3.1: 5.4 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N · NVD
EPSS: 0.00378 · percentile 0.30342 · 2026-10-19
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-19 17:57:47.606446+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-34281.html