XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Prior to 17.4.8 and 17.10.1, an improperly protected scripting API allows any user with script right to bypass the sandboxing of the Velocity scripting API and execute, e.g., arbitrary Python scripts, allowing full access to the XWiki instance and thereby compromising the confidentiality, integrity and availability of the whole instance. Note that script right already constitutes a high level of access that we don't recommend giving to untrusted users.
This vulnerability is fixed in 17.4.8 and 17.10.1.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://github.com/xwiki/xwiki-platform/commit/9fe84da66184c05953df9466cf3a4acd…
security-advisories@github.com
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-h259-74h5-4rh9
security-advisories@github.com
https://jira.xwiki.org/browse/XWIKI-23698
security-advisories@github.com
https://jira.xwiki.org/browse/XWIKI-23702
security-advisories@github.com