CVE-2021-3012 Cross-site scripting in n/a

Medium 5.4 Published Updated

Remote authenticated users can inject arbitrary JavaScript via malicious HTML attributes in document links, potentially leading to code execution or account takeover.

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

What is CVE-2021-3012?

CVE-2021-3012 is a medium-severity cross-site scripting vulnerability in n/a, published on 8 Apr 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A cross-site scripting (XSS) vulnerability in the Document Link of documents in ESRI Enterprise before 10.9 allows remote authenticated users to inject arbitrary JavaScript code via a malicious HTML attribute such as onerror (in the URL field of the Parameters tab).

Weakness: CWE-79

Which versions are affected by CVE-2021-3012?

It affects 1 product.

Products include Esri Arcgis Enterprise.

How do I fix CVE-2021-3012?

No fix has been published for CVE-2021-3012 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-2021-3012 being exploited?

There is no known exploitation of CVE-2021-3012 in the wild and no public exploit code.

Sources

Also known as GHSA-m6pr-qpr2-vp84.

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