CVE-2026-0858

MEDIUM
2026-01-16 [email protected] GHSA-hrvf-g648-rf3m
6.1
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
Patch Released
Feb 02, 2026 - 18:52 nvd
Patch available
CVE Published
Jan 16, 2026 - 05:16 nvd
MEDIUM 6.1

Tags

XSS Plantuml Redhat Suse

Description

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.

Analysis

PlantUML versions before 1.2026.0 fail to properly sanitize interactive attributes in GraphViz diagrams, allowing attackers to inject malicious JavaScript into SVG output through crafted diagram files. Applications that render these SVGs are vulnerable to arbitrary script execution within the user's browser context. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

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Priority Score

31
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +30
POC: 0

Vendor Status

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CVE-2026-0858 vulnerability details – vuln.today
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