Critical severity · published May 9, 2023
CVE-2023-31126
Improper Neutralization of Invalid Characters in Data Attribute Names in org.xwiki.commons:xwiki-commons-xml
9.6
CVSS
0.8%
EPSS
No
On KEV
Description
`org.xwiki.commons:xwiki-commons-xml` is an XML library used by the open-source wiki platform XWiki. The HTML sanitizer, introduced in version 14.6-rc-1, allows the injection of arbitrary HTML code and thus cross-site scripting via invalid data attributes. This vulnerability does not affect restricted cleaning in HTMLCleaner as there attributes are cleaned and thus characters like `/` and `>` are removed in all attribute names. This problem has been patched in XWiki 14.10.4 and 15.0 RC1 by making sure that data attributes only contain allowed characters. There are no known workarounds apart from upgrading to a version including the fix.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 57% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XW
xwiki-commons · xwiki
>= 14.6-rc-1, < 14.10.4 · source: vendor
XW
Xwiki · Xwiki
14.6 before 14.10.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-31126
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-31126
Patch
https://github.com/xwiki/xwiki-commons/commit/0b8e9c45b7e7457043938f35265b2aa5adc76a68
Vendor Advisory
https://github.com/xwiki/xwiki-commons/security/advisories/GHSA-pv7v-ph6g-3gxv
Vendor Advisory
https://jira.xwiki.org/browse/XCOMMONS-2606
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