A vulnerability was found in Craft CMS 3.0.25 (Content Management System) and classified as problematic. Affected by this issue is some unknown functionality of the file index.php?p=admin/actions/entries/save-entry. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

index.php?p=admin/actions/entries/save-entry in Craft CMS 3.0.25 allows XSS by saving a new title from the console tab.

The bug was discovered 12/18/2018. The weakness was shared 12/24/2018 (Website). The advisory is available at github.com. This vulnerability is handled as CVE-2018-20418 since 12/23/2018. The attack may be launched remotely. A simple authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details as well as a public exploit are known. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (46054). The entry 128422 is related to this item.

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Type

• Content Management System

Vendor

• Craft

Name

• CMS

Version

• 3.0.25

License

• free

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CPE 2.2info

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