Cross Site Scripting (XSS) in XWiki

MEDIUM 5.4CVE-2021-3137 · GHSA-43hg-g44q-474q · Published 20/01/2021 · updated 17/06/2026

In short

CVE-2021-3137 is a MEDIUM (CVSS 5.4) vulnerability affecting org.xwiki.commons:xwiki-commons, xwiki (xwiki).
Chance of exploitation in the next 30 days (EPSS): 0.74%, higher than 54.8% of all vulnerabilities.
Fix: update to 12.10.3 or later.

Package	Affected versions	Patched versions
org.xwiki.commons:xwiki-commons Maven	`< 12.10.3`	`12.10.3`
xwiki xwiki	`= 12.10.2`	No fix yet

XWiki 12.10.2 allows XSS via an SVG document to the upload feature of the comment section.

NVD description

XWiki 12.10.2 allows XSS via an SVG document to the upload feature of the comment section.

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