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Database

Server side cross-site scripting In net.sourceforge.plantuml:plantuml

Description

PlantUML is vulnerable to Stored XSS due to insufficient sanitization of interactive attributes in GraphViz diagrams 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.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem
Package
Affected version
Patched versions

Aliases

1. CVE-2026-08582. NVD-2026-08583. OSV-2026-0858

References

1. https://github.com/plantuml/plantuml/commit/6826315db092d2e432aeab1a0894e08017c6e4bd2. https://github.com/plantuml/plantuml/releases/tag/v1.2026.0

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