Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in XWiki platform - CVE-2023-40176
Published: August 21, 2023 / Updated: May 5, 2026
Vulnerability identifier: #VU129942
CSH Severity: Medium
CVSS v4.0: 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
CVE-ID: CVE-2023-40176
CWE-ID: CWE-80
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: XWiki
Affected software:
XWiki platform
XWiki platform
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary script code in a victim's browser.
The vulnerability exists due to improper neutralization of script-related HTML tags in displayer_timezone.vm when displaying the time zone user preference in a user profile. A remote user can set a crafted time zone value through the profile save request to execute arbitrary script code in a victim's browser.
User interaction is required because a victim must visit the malicious user profile.
How to mitigate CVE-2023-40176
Install security update from vendor's website.