CVE-2021-43841 Information

Description

XWiki is a generic wiki platform offering runtime services for applications built on top of it. When using default XWiki configuration it’s possible for an attacker to upload an SVG containing a script executed when executing the download action on the file. This problem has been patched so that the default configuration doesn’t allow to display the SVG files in the browser. Users are advised to update or to disallow uploads of SVG files.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Reference

https://github.com/xwiki/xwiki-platform/commit/5853d492b3a274db0d94d560e2a5ea988a271c62 https://www.xwiki.org/xwiki/bin/view/Documentation/AdminGuide/Attachments#HAttachmentdisplayordownload https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-9jq9-c2cv-pcrj https://jira.xwiki.org/browse/XWIKI-18368

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

5.4