CVE-2021-42750 json
A cross-site scripting (XSS) vulnerability in Rule Engine in ThingsBoard 3.3.1 allows remote attackers (with administrative access) to inje…
published 2022-08-12 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-29708
- cvss
- 4.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.2%
- EPSS 3.2% chance of exploitation in 30 days, percentile 88%
- public exploits
- 1
- Exploit-DB
Summary
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 title of a rule node.
Timeline
- First public exploit (EDB-51003)
- Published
Exploit prediction
3.21% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-51003 ThingsBoard 3.3.1 'name' - Stored Cross-Site Scripting (XSS) webapps, 2022-08-09
- packetstormsecurity.com https://packetstormsecurity.com/files/167999/Thingsboard-3.3.1-Cross-Site-Scripting.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
packetstormsecurity.com
/files/167999/Thingsboard-3.3.1-Cross-Site-Scripting.html
exploit, third-party-advisory, vdb-entry
-
github.com
/thingsboard/thingsboard
product, third-party-advisory
Sources
- CVE List CVE-2021-42750
- NVD CVE-2021-42750
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