CVE-2018-17830 Cross-site scripting in n/a

Medium 5.4 Published Updated

An attacker can inject XSS payloads via the args parameter in the mediapool plugin, potentially executing arbitrary scripts in the victim's browser.

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-2018-17830?

CVE-2018-17830 is a medium-severity cross-site scripting vulnerability in n/a, published on 1 Oct 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The $args variable in addons/mediapool/pages/index.php in REDAXO 5.6.2 is not effectively filtered, because names are not restricted (only values are restricted). The attacker can insert XSS payloads via an index.php?page=mediapool/media&opener_input_field=&args[ substring.

Weakness: CWE-79

Which versions are affected by CVE-2018-17830?

It affects 1 product.

Products include Redaxo Redaxo.

How do I fix CVE-2018-17830?

No fix has been published for CVE-2018-17830 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-2018-17830 being exploited?

There is no known exploitation of CVE-2018-17830 in the wild and no public exploit code.

Sources

Also known as GHSA-87rp-rpx5-r7j3.

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