Code Injection in XWiki platform - CVE-2021-21379
Published: March 16, 2021
Vulnerability identifier: #VU51504
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-21379
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
XWiki platform
How to mitigate CVE-2021-21379
Install updates from vendor's website.
XWiki platform - addressed in versions 11.10.11, 12.6.3, 12.8 rc-1