SB2023041279 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in XWiki platform

Description

This security bulletin contains information about 1 vulnerability.

1) Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) (CVE-ID: CVE-2023-29206)

CWE-ID: CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote user to execute arbitrary script in a victim's browser.

The vulnerability exists due to improper neutralization of script-related HTML tags in JSX or SSX plugins when executing JavaScript xobject or StyleSheet xobject content from a XWiki document. A remote user can create a crafted object in a document to execute arbitrary script in a victim's browser.

User interaction is required, and exploitation occurs when a user with appropriate rights executes the crafted script.

Remediation

Install update from vendor's website.

References

• https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-cmvg-w72j-7phx
• https://jira.xwiki.org/browse/XWIKI-19514