XWiki Platform is a generic wiki platform. The REST API exposes the history of any page in XWiki of which the attacker knows the name. The exposed information includes for each modification of the page the time of the modification, the version number, the author of the modification (both username and displayed name) and the version comment. This information is exposed regardless of the rights setup, and even when the wiki is configured to be fully private. On a private wiki, this can be tested by accessing /xwiki/rest/wikis/xwiki/spaces/Main/pages/WebHome/history, if this shows the history of the main page then the installation is vulnerable. This has been patched in XWiki 15.10.9 and XWiki 16.3.0RC1.
The product does not properly prevent a person's private, personal information from being accessed by actors who either (1) are not explicitly authorized to access the information or (2) do not have the implicit consent of the person about whom the information is collected.
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
| Link | Tags |
|---|---|
| https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-pvmm-55r5-g3mm | vendor advisory |
| https://github.com/xwiki/xwiki-platform/commit/26482ee5d29fc21f31134d1ee13db48716e89e0f | patch |
| https://github.com/xwiki/xwiki-platform/commit/9cbca9808300797c67779bb9a665d85cf9e3d4b8 | patch |
| https://jira.xwiki.org/browse/XWIKI-22052 | patch issue tracking exploit vendor advisory |