CVE-2021-42750 Cross-site scripting in n/a

Medium 4.8 Published Updated

Remote attackers with administrative access can inject arbitrary JavaScript into rule node titles, potentially leading to code execution or account takeover.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-42750?

CVE-2021-42750 is a medium-severity cross-site scripting vulnerability in n/a, published on 12 Aug 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official 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 title of a rule node.

Weakness: CWE-79

Which versions are affected by CVE-2021-42750?

It affects 1 product.

Products include Thingsboard Thingsboard.

How do I fix CVE-2021-42750?

No fix has been published for CVE-2021-42750 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2021-42750 being exploited?

There is no known exploitation of CVE-2021-42750 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-2fvg-6m83-pjw6.

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