9.9 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
6.9 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
26.7%
In XWiki Platform, it’s possible for a user to execute any content with the right of an existing document’s content author, provided the user have edit right on it. The reason for this is that the edit action sets the content without modifying the content author.
To reproduce:
<xwiki-host>/xwiki/bin/edit/<document>/?content=%7B%7Bgroovy%7D%7Dprintln%28%22Hello+from+Groovy%21%22%29%7B%7B%2Fgroovy%7D%7D&xpage=view
, where <xwiki-host>
is the URL of your XWiki installation and <document>
is the path to a document whose content author has programming right (or script right) and on which the current user has edit right.The text “Hello from Groovy!” is displayed in the page content, showing that the Groovy macro has been executed, which should not be the case for a user without programming right.
This has been patched in XWiki 14.10.6 and 15.2RC1.
There are no known workarounds for it.
If you have any questions or comments about this advisory:
9.9 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
6.9 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
26.7%