CVE-2026-4813

A vulnerability in the Lutece Core XSL export management module up to version 7.1.7, which allows authenticated administrators to execute code remotely. The XML/XSLT processing configuration does not enable secure processing mode (FEATURE_SECURE_PROCESSING), allowing Java extension functions to be executed from malicious XSL stylesheets. An attacker with administrator privileges can upload a manipulated XSL transformation file and trigger its execution during user export operations, resulting in the execution of arbitrary code on the server.

  • Published Sep 1, 2026
  • CVSS 9.4 critical
  • 0.5% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-4813 at the National Vulnerability Database