CVE-2023-6720 Cross-site Scripting in Repox

Medium 5.5 Published Updated

A local attacker can inject malicious JavaScript into Repox due to insufficient input sanitization, leading to script execution when the application loads.

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-2023-6720?

CVE-2023-6720 is a medium-severity cross-site scripting vulnerability in Repox, published on 13 Dec 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

An XSS vulnerability stored in Repox has been identified, which allows a local attacker to store a specially crafted JavaScript payload on the server, due to the lack of proper sanitisation of field elements, allowing the attacker to trigger the malicious payload when the application loads.

Weakness: CWE-79

Which versions are affected by CVE-2023-6720?

It affects 1 product.

Products include Europeana Repox.

How do I fix CVE-2023-6720?

No fix has been published for CVE-2023-6720 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-2023-6720 being exploited?

There is no known exploitation of CVE-2023-6720 in the wild and no public exploit code.

Sources

Also known as GHSA-3j5h-p2g7-9wc9.

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