org.xwiki.platform:xwiki-platform-oldcore may leak data through deleted and re-created documents
Impact
When a document has been deleted and re-created, it is possible for users with view right on the re-created document but not on the deleted document to view the contents of the deleted document. Such a situation might arise when rights were added to the deleted document. This can be exploited through the diff feature and, partially, through the REST API by using versions such as deleted:1 (where the number counts the deletions in the wiki and is thus guessable). Given sufficient rights, the attacker can also re-create the deleted document, thus extending the scope to any deleted document as long as the attacker has edit right in the location of the deleted document.
Patches
This vulnerability has been patched in XWiki 14.10.8 and 15.3 RC1 by properly checking rights when deleted revisions of a document are accessed.
Workarounds
The only workaround is to regularly clean deleted documents to minimize the potential exposure. Extra care should be taken when deleting sensitive documents that are protected individually (and not, e.g., by being placed in a protected space) or deleting a protected space as a whole.
References
- https://jira.xwiki.org/browse/XWIKI-20685 (root cause)
- https://jira.xwiki.org/browse/XWIKI-20817 (exploitation via the diff feature)
- https://jira.xwiki.org/browse/XWIKI-20684 (exploitation via the REST API)
- https://github.com/xwiki/xwiki-platform/commit/f471f2a392aeeb9e51d59fdfe1d76fccf532523f
Czego dotyczy
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| Platforma | Paczka | Podatne wersje | Poprawka w wersji |
|---|---|---|---|
| Java / Kotlin (Maven) | org.xwiki.platform:xwiki-platform-oldcore | >= 9.4-rc-1, < 14.10.8, >= 15.0-rc-1, < 15.3-rc-1 | 14.10.8, 15.3-rc-1 |
Odnośniki
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-gh64-qxh5-4m33
- https://nvd.nist.gov/vuln/detail/CVE-2023-37911
- https://github.com/xwiki/xwiki-platform/commit/f471f2a392aeeb9e51d59fdfe1d76fccf532523f
- https://extensions.xwiki.org/xwiki/bin/view/Extension/Index%20Application#HPermanentlydeleteallpages
- https://github.com/xwiki/xwiki-platform
- https://jira.xwiki.org/browse/XWIKI-20684
- https://jira.xwiki.org/browse/XWIKI-20685
- https://jira.xwiki.org/browse/XWIKI-20817
- Wektor CVSS
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N- Słabość (CWE)
CWE-668- Platforma
- Java / Kotlin (Maven)
- Paczka
org.xwiki.platform:xwiki-platform-oldcore- Ujawniono
- 25.10.2023
- Aktualizacja
- 11.10.2026 11:21
Źródła i licencje
OSV / GitHub Advisory Database - GHSA-gh64-qxh5-4m33 - CC BY 4.0
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