CVE-2021-4293 gnuboard youngcart5 menu_list_update.php cross site scripting

Low 3.5 Published Updated

Remote attackers can inject malicious scripts via the me_link argument in the admin menu update function, potentially compromising user sessions.

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-2021-4293?

CVE-2021-4293 is a low-severity cross-site scripting vulnerability in gnuboard youngcart5, published on 28 Dec 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability classified as problematic has been found in gnuboard youngcart5 up to 5.4.5.1. Affected is an unknown function of the file adm/menu_list_update.php. The manipulation of the argument me_link leads to cross site scripting. It is possible to launch the attack remotely. Upgrading to version 5.4.5.2 is able to address this issue. The name of the patch is 70daa537adfa47b87af12d85f1e698fff01785ff. It is recommended to upgrade the affected component. VDB-216954 is the identifier assigned to this vulnerability. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-79

Which versions are affected by CVE-2021-4293?

It affects 1 product.

Products include Sir Youngcart5.

How do I fix CVE-2021-4293?

No fix has been published for CVE-2021-4293 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-2021-4293 being exploited?

There is no known exploitation of CVE-2021-4293 in the wild and no public exploit code.

Sources

Also known as GHSA-cr4w-9634-7vrf.

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