XML External Entity injection in XWiki Commons

1) XML External Entity injection

EUVDB-ID: #VU62720

Risk: Low

CVSSv3.1: 4.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-24898

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input. A remote administrator can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

XWiki Commons: 2.7 - 13.7

External links

http://github.com/xwiki/xwiki-commons/commit/947e8921ebd95462d5a7928f397dd1b64f77c7d5
http://jira.xwiki.org/browse/XWIKI-18946
http://github.com/xwiki/xwiki-commons/security/advisories/GHSA-m2r5-4w96-qxg5

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.