Improper Neutralization of Alternate XSS Syntax in XWiki platform - CVE-2023-35158
Published: June 22, 2023 / Updated: May 5, 2026
Vulnerability identifier: #VU129951
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-35158
CWE-ID: CWE-87
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to inject arbitrary JavaScript in the page.
The vulnerability exists due to improper neutralization of alternate XSS syntax in the restore template when handling the xredirect parameter in a crafted URL. A remote attacker can send a specially crafted URL to inject arbitrary JavaScript in the page.
User interaction is required to open the crafted URL.
Affected software
XWiki platform
How to mitigate CVE-2023-35158
Install security update from vendor's website.
XWiki platform - addressed in versions 14.10.5, 15.1 rc-1