CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
AI Score
Confidence
Low
EPSS
Percentile
41.1%
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. When a user has view but not edit right on a page in XWiki, that user can delete the page and replace it by a page with new content without having delete right. The previous version of the page is moved into the recycle bin and can be restored from there by an admin. As the user is recorded as deleter, the user would in theory also be able to view the deleted content, but this is not directly possible as rights of the previous version are transferred to the new page and thus the user still doesn’t have view right on the page. It therefore doesn’t seem to be possible to exploit this to gain any rights. This has been patched in XWiki 14.10.21, 15.5.5 and 15.10.6 by cancelling save operations by users when a new document shall be saved despite the document’s existing already.
[
{
"vendor": "xwiki",
"product": "xwiki-platform",
"versions": [
{
"version": ">= 13.10.4, < 14.0-rc-1",
"status": "affected"
},
{
"version": ">= 14.2, < 14.10.21",
"status": "affected"
},
{
"version": ">= 15.0, < 15.5.5",
"status": "affected"
},
{
"version": ">= 15.6-rc-1, < 15.10.6",
"status": "affected"
}
]
}
]
github.com/xwiki/xwiki-platform/commit/0bc27d6ec63c8a505ff950e2d1792cb4f773c22e
github.com/xwiki/xwiki-platform/commit/56f5d8aab7371d5ba891168f73890806551322c5
github.com/xwiki/xwiki-platform/commit/c5efc1e519e710afdf3c5f40c0fcc300ad77149f
github.com/xwiki/xwiki-platform/commit/e4968fe268e5644ffd9bfa4ef6257d2796446009
github.com/xwiki/xwiki-platform/security/advisories/GHSA-33gp-gmg3-hfpq
jira.xwiki.org/browse/XWIKI-21553