CVE-2023-31126

moderate-risk
Published 2023-05-09

`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.

Do I need to act?

~
2.7% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.0/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Xwiki

References (7)

Patch https://github.com/xwiki/xwiki-commons/commit/0b8e9c45b7e7457043938f35265b2aa5ad...
Vendor Advisory https://github.com/xwiki/xwiki-commons/security/advisories/GHSA-pv7v-ph6g-3gxv
Vendor Advisory https://jira.xwiki.org/browse/XCOMMONS-2606
Patch https://github.com/xwiki/xwiki-commons/commit/0b8e9c45b7e7457043938f35265b2aa5ad...
Vendor Advisory https://github.com/xwiki/xwiki-commons/security/advisories/GHSA-pv7v-ph6g-3gxv
Vendor Advisory https://jira.xwiki.org/browse/XCOMMONS-2606
Vendor Advisory https://jira.xwiki.org/browse/XCOMMONS-2606
41
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 6/34 · Minimal
Exposure 5/34 · Minimal