CVE-2018-15601 Elefant CMS Improper Input Validation

Critical 9.8 Published Updated

Attackers can bypass executable file upload restrictions in Elefant CMS by exploiting a late urldecode step, potentially leading to remote code execution.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2018-15601?

CVE-2018-15601 is a critical vulnerability in n/a, published on 21 Aug 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

apps/filemanager/handlers/upload/drop.php in Elefant CMS 2.0.3 performs a urldecode step too late in the "Cannot upload executable files" protection mechanism.

Weakness: CWE-20

Which versions are affected by CVE-2018-15601?

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

PackageAffectedFixed in
elefant/cms PackagistAll versions2.0.4
elefant/cms PackagistAll versions2.0.4

Products include Elefantcms Elefantcms.

How do I fix CVE-2018-15601?

Upgrade elefant/cms to 2.0.4 or later.

Is CVE-2018-15601 being exploited?

There is no known exploitation of CVE-2018-15601 in the wild and no public exploit code.

Sources

Also known as GHSA-pcf7-5974-vjh4.

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