CVE-2026-0858 (GCVE-0-2026-0858)
Vulnerability from cvelistv5 – Published: 2026-01-16 05:00 – Updated: 2026-01-16 14:10
VLAI?
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.
Severity ?
6.1 (Medium)
CWE
- CWE-79 - Stored XSS
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | net.sourceforge.plantuml:plantuml |
Affected:
0 , < 1.2026.0
(semver)
|
Credits
Catalin Iovita (Snyk Security Research)
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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