CVE-2021-38713 Cross-site scripting in imgURL

Medium 5.4 Published Updated

Cross-site scripting vulnerability in imgURL allows attackers to inject malicious scripts via the X-Forwarded-For header.

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-2021-38713?

CVE-2021-38713 is a medium-severity cross-site scripting vulnerability in n/a, published on 16 Aug 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

imgURL 2.31 allows XSS via an X-Forwarded-For HTTP header.

Weakness: CWE-79

Which versions are affected by CVE-2021-38713?

2 open source packages ship an affected version, including helloxz/imgurl. It affects 1 product.

PackageAffectedFixed in
helloxz/imgurl PackagistAll versions to 2.31None
helloxz/imgurl PackagistAll versions to 2.31None

Products include Imgurl Project Imgurl.

How do I fix CVE-2021-38713?

No fix has been published for CVE-2021-38713 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-2021-38713 being exploited?

There is no known exploitation of CVE-2021-38713 in the wild and no public exploit code.

Sources

Also known as GHSA-f2rp-j8hv-g5gx.

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