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Vulnerability · Published Apr 10, 2024 · Assigned by GitHub_M

CVE-2024-31996XWiki Commons missing escaping of `{` in Velocity escapetool allows remote code execution

Critical 10.0

In plain English

A critical-severity security flaw in xwiki-commons from xwiki. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 2.1% (higher than 82% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)10.0Critical
Exploit odds (30 days)2.1%top 18.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

XWiki Platform is a generic wiki platform. Starting in version 3.0.1 and prior to versions 4.10.19, 15.5.4, and 15.10-rc-1, the HTML escaping of escaping tool that is used in XWiki doesn't escape `{`, which, when used in certain places, allows XWiki syntax injection and thereby remote code execution. The vulnerability has been fixed in XWiki 14.10.19, 15.5.5, and 15.9 RC1. Apart from upgrading, there is no generic workaround. However, replacing `$escapetool.html` by `$escapetool.xml` in XWiki documents fixes the vulnerability. In a standard XWiki installation, the maintainers are only aware of the document `Panels.PanelLayoutUpdate` that exposes this vulnerability, patching this document is thus a workaround. Any extension could expose this vulnerability and might thus require patching, too.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Mavenorg.xwiki.commons:xwiki-commons-velocity14.10.19GHSA-hf43-47q4-fhq5
Mavenorg.xwiki.commons:xwiki-commons-velocity15.5.4GHSA-hf43-47q4-fhq5
Mavenorg.xwiki.commons:xwiki-commons-velocity15.9-rc-1GHSA-hf43-47q4-fhq5

Affected products (as reported)

VendorProductVersions
xwiki xwiki-commons >= 3.0.1, < 14.10.19>= 15.0-rc-1, < 15.5.4>= 15.6-rc-1, < 15.9-rc-1

Weakness: CWE-95 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References