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CVE-2026-0858

plantuml: PlantUML: Arbitrary script execution via Stored Cross-Site Scripting 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.

CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
Vendors
Plantuml
Products
Plantuml
CVE-2023-3432

Server-Side Request Forgery (SSRF) in plantuml/plantuml

Server-Side Request Forgery (SSRF) in GitHub repository plantuml/plantuml prior to 1.2023.9.

CVSS 3.1 · 10.0 Critical EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Plantuml
Products
Fedora Plantuml
CVE-2022-1379

URL Restriction Bypass in plantuml/plantuml

URL Restriction Bypass in GitHub repository plantuml/plantuml prior to V1.2022.5. An attacker can abuse this to bypass URL restrictions that are imposed by the different security profiles and achieve server side request forgery (SSRF). This allows accessing restricted internal resources/servers or sending requests to third party servers.

CVSS 3.1 · 9.1 Critical EPSS 1.6% KEV · Not listed
Vendors
Fedoraproject Plantuml
Products
Fedora Plantuml
CVE-2022-1231

XSS via Embedded SVG in SVG Diagram Format in plantuml/plantuml

XSS via Embedded SVG in SVG Diagram Format in GitHub repository plantuml/plantuml prior to 1.2022.4. Stored XSS in the context of the diagram embedder. Depending on the actual context, this ranges from stealing secrets to account hijacking or even to code execution for example in desktop applications. Web based applications are the ones most affected. Since the SVG format allows clickable links in diagrams, it is commonly used in plugins for web based projects (like the Confluence plugin, etc. see https://plantuml.com/de/running).

CVSS 3.1 · 6.1 Medium EPSS 2.0% KEV · Not listed
Vendors
Fedoraproject Plantuml
Products
Fedora Plantuml