CVE-2023-31126 is a critical cross-site scripting (XSS) vulnerability affecting the HTML sanitizer in org.xwiki.commons:xwiki-commons-xml, a library used by the XWiki platform. This flaw allows attackers to inject arbitrary HTML code via invalid data attributes, impacting XWiki versions prior to 14.10.4 and 15.0 RC1. With a CVSS score of 9.6, it presents a high severity risk due to its network-based attack vector, low complexity, and potential for complete compromise of confidentiality, integrity, and availability. While no active exploitation, public exploit code, or significant community discussion has been observed, immediate patching is recommended as there are no known workarounds.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 14.6, < 14.10.4CPE matchmatch criteria | cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.