plone.namedfile SVG Image File/Image cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, was found in plone.namedfile. This vulnerability affects unknown code of the component SVG Image Handler. The manipulation of the argument File/Image results in cross site scripting. This vulnerability is cataloged as CVE-2023-41048. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in plone.namedfile (Content Management System) (affected version not known). It has been classified as problematic. Affected is some unknown functionality of the component SVG Image Handler. The manipulation of the argument File/Image with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. CVE summarizes:

plone.namedfile allows users to handle `File` and `Image` fields targeting, but not depending on, Plone Dexterity content. Prior to versions 5.6.1, 6.0.3, 6.1.3, and 6.2.1, there is a stored cross site scripting vulnerability for SVG images. A security hotfix from 2021 already partially fixed this by making sure SVG images are always downloaded instead of shown inline. But the same problem still exists for scales of SVG images. Note that an image tag with an SVG image as source is not vulnerable, even when the SVG image contains malicious code. To exploit the vulnerability, an attacker would first need to upload an image, and then trick a user into following a specially crafted link. Patches are available in versions 5.6.1 (for Plone 5.2), 6.0.3 (for Plone 6.0.0-6.0.4), 6.1.3 (for Plone 6.0.5-6.0.6), and 6.2.1 (for Plone 6.0.7). There are no known workarounds.

The weakness was shared 09/21/2023 as GHSA-jj7c-jrv4-c65x. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-41048 since 08/22/2023. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability scanner Nessus provides a plugin with the ID 300605 (Plone Python Library Multiple Vulnerabilities (20230921)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability. Applying the patch 188f66a4577021cf8f2bf7c0f5150f9b9573f167 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (300605). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Content Management System

Name

• plone.namedfile

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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