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CVE-2026-0858

CVE-2026-0858

CVSS 5.1 MEDIUMEPSS 0.3%CWE-79
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N/E:P
Affected products
n/a · net.sourceforge.plantuml:plantuml

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References
https://github.com/plantuml/plantuml/commit/6826315db092d2e432aeab1a0894e08017c6e4bdhttps://github.com/plantuml/plantuml/releases/tag/v1.2026.0https://security.snyk.io/vuln/SNYK-JAVA-NETSOURCEFORGEPLANTUML-14552230