XWiki Commons are technical libraries common to several other top level XWiki projects. Any user with edit rights can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping of the included pages in the IncludedDocuments panel. The problem has been patched on XWiki 14.4.7, and 14.10.
The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes code syntax before using the input in a dynamic evaluation call (e.g. "eval").
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
Link | Tags |
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https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-qx9h-c5v6-ghqh | patch vendor advisory exploit |
https://github.com/xwiki/xwiki-platform/commit/50b4d91418b4150933f0317eb4a94ceaf5b69f67 | patch |
https://jira.xwiki.org/browse/XWIKI-20306 | issue tracking exploit |