#VU72773 Improper access control in XWiki platform - CVE-2023-26471

Vulnerability identifier: #VU72773

Vulnerability risk: Medium

CVSSv4.0: 7.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-26471

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
XWiki platform
Web applications / CMS

Vendor: XWiki

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions within comments and async macro. A remote user can bypass implemented security restrictions and gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

XWiki platform: 11.6 rc-1

---

External links
https://github.com/xwiki/xwiki-platform/commit/00532d9f1404287cf3ec3a05056640d809516006
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-9cqm-5wf7-wcj7
https://jira.xwiki.org/browse/XWIKI-20234

---

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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