CVE-2020-12853 Cross-site scripting in n/a

Medium 6.1 Published Updated

A malicious user can inject HTML and JavaScript via file uploads in Pydio Cells, potentially leading to code execution or account takeover.

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

What is CVE-2020-12853?

CVE-2020-12853 is a medium-severity cross-site scripting vulnerability in n/a, published on 4 Jun 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Pydio Cells 2.0.4 allows XSS. A malicious user can either upload or create a new file that contains potentially malicious HTML and JavaScript code to personal folders or accessible cells.

Weakness: CWE-79

Which versions are affected by CVE-2020-12853?

It affects 1 product.

Products include Pydio Cells.

How do I fix CVE-2020-12853?

No fix has been published for CVE-2020-12853 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-2020-12853 being exploited?

There is no known exploitation of CVE-2020-12853 in the wild and no public exploit code.

Sources

Also known as GHSA-3v69-q96q-wq6c.

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