Versions of the package net.sourceforge.plantuml:plantuml before 1.2026.0 are vulnerable to Stored XSS due to insufficient sanitization of interactive attributes in GraphViz diagrams. As a result, a crafted PlantUML diagram can inject malicious JavaScript into generated SVG output, leading to arbitrary script execution in the context of applications that render the SVG.
{
"github_reviewed": true,
"github_reviewed_at": "2026-01-16T20:45:39Z",
"severity": "LOW",
"nvd_published_at": "2026-01-16T05:16:16Z",
"cwe_ids": [
"CWE-79"
]
}