CVE-2023-31126

Improper Neutralization of Invalid Characters in Data Attribute Names in org.xwiki.commons:xwiki-commons-xml

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.

Categories

9.0
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 3.27% Top 15%
Vendor Advisory github.com Vendor Advisory xwiki.org
Affected: xwiki xwiki-commons
Published at:
Updated at:

References

Link Tags
https://github.com/xwiki/xwiki-commons/security/advisories/GHSA-pv7v-ph6g-3gxv vendor advisory
https://github.com/xwiki/xwiki-commons/commit/0b8e9c45b7e7457043938f35265b2aa5adc76a68 patch
https://jira.xwiki.org/browse/XCOMMONS-2606 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-31126?
CVE-2023-31126 has been scored as a critical severity vulnerability.
How to fix CVE-2023-31126?
To fix CVE-2023-31126, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-31126 being actively exploited in the wild?
It is possible that CVE-2023-31126 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-31126?
CVE-2023-31126 affects xwiki xwiki-commons.
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