| Package | Affected versions | Patched versions |
|---|---|---|
| org.xwiki.platform:xwiki-platform-oldcore | ≥ 0.9.543, < 1.0B1 | 1.0B1 |
| xwiki | = 0.9.1252= 0.9.543= 0.9.790= 0.9.793= 0.9.840 |
PreviewAction in XWiki 0.9.543 through 0.9.1252 does not set the Author field to the identity of the user who last modified a document, which allows remote authenticated users without programming rights to execute arbitrary code by selecting a document whose author has programming rights, modifying this document to contain a script, and previewing without saving the document.
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