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
0.002 Low
EPSS
Percentile
52.9%
Any user with edit rights can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping of the included pages in the included documents edit panel.
A proof of concept exploit is to edit a document and add the following code before saving.
{{display reference="{{cache~}~}{{groovy~}~}println(~"Hello from Groovy~" + ~" in included document!~"){{/groovy~}~}{{/cache~}~}"/}}
expected
The right had side panels contain:
One included page:
{{cache}}{{groovy}}println("Hello from Groovy" + " in included document!"){{/groovy}}{{/cache}}
actual
The right had side panels contain:
One included page:
XWiki.Hello from Groovy in included document!
The problem has been patched on XWiki 14.4.7, and 14.10.
The issue can be fixed manually applying this patch.
If you have any questions or comments about this advisory:
github.com/xwiki/xwiki-platform
github.com/xwiki/xwiki-platform/commit/22f249a0eb9f2a64214628217e812a994419b69f#diff-a51a252f0190274464027342b4e3eafc4ae32de4d9c17ef166e54fc5454c5689R214-R217
github.com/xwiki/xwiki-platform/security/advisories/GHSA-c5f4-p5wv-2475
jira.xwiki.org/browse/XWIKI-20293
nvd.nist.gov/vuln/detail/CVE-2023-29212