XML External Entity injection in XWiki platform - CVE-2023-27480
Published: March 7, 2023 / Updated: May 5, 2026
Vulnerability identifier: #VU129981
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N]
CVE-ID: CVE-2023-27480
CWE-ID: CWE-611
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to improper restriction of XML external entity reference in the XAR import package.xml parser when parsing a forged XAR file during import. A remote user can upload a specially crafted XAR file and trigger its import to disclose sensitive information.
Exploitation requires edit rights on a document and can expose the content of files on the XWiki server host.
Affected software
XWiki platform
How to mitigate CVE-2023-27480
Install security update from vendor's website.
XWiki platform - addressed in versions 13.10.11, 14.4.7, 14.10