CVE-2026-0858

Summary

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.

Affected Software

VendorProductVersion RangeStatus
n/anet.sourceforge.plantuml:plantuml0 < 1.2026.0affected

Weaknesses

  • CWE-79: Stored XSS

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References