What’s Vulnerable › Vulnerabilities

CVE-2021-42751

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-08-12 · updated 2026-06-17
• Weakness: CWE-79

Description

A cross-site scripting (XSS) vulnerability in Rule Engine in ThingsBoard 3.3.1 allows remote attackers (with administrative access) to inject arbitrary JavaScript within the description of a rule node.

Affected products

• ThingsBoard: 3.3.1

References

• https://github.com/thingsboard/thingsboard
• https://packetstormsecurity.com/files/167999/Thingsboard-3.3.1-Cross-Site-Scripting.html
• https://github.com/thingsboard/thingsboard
• https://packetstormsecurity.com/files/167999/Thingsboard-3.3.1-Cross-Site-Scripting.html

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