#VU51504 Code Injection in XWiki platform

Published: 2021-03-16

Vulnerability identifier: #VU51504

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21379


Exploitation vector: Network

Exploit availability: No

Vulnerable software:
XWiki platform
Web applications / CMS

Vendor: XWiki


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in the "{{wikimacrocontent}}". A remote attacker can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Install updates from vendor's website.

Vulnerable software versions

XWiki platform: 12.7 - 12.7.1, 12.6.2, 11.10.10, 11.4 rc-1 - 12.0

External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

Latest bulletins with this vulnerability