{"id":"UBUNTU-CVE-2026-0858","details":"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.","modified":"2026-05-20T16:24:06.718752329Z","published":"2026-01-16T05:16:00Z","upstream":["CVE-2026-0858"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-0858"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-0858"},{"type":"REPORT","url":"https://security.snyk.io/vuln/SNYK-JAVA-NETSOURCEFORGEPLANTUML-14552230"},{"type":"REPORT","url":"https://github.com/plantuml/plantuml/commit/6826315db092d2e432aeab1a0894e08017c6e4bd"},{"type":"REPORT","url":"https://github.com/plantuml/plantuml/commit/6826315db092d2e432aeab1a0894e08017c6e4bd"},{"type":"REPORT","url":"https://github.com/plantuml/plantuml/releases/tag/v1.2026.0"}],"affected":[{"package":{"name":"plantuml","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/plantuml?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8024-2","8024-2ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"plantuml","binary_version":"8024-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0858.json"}},{"package":{"name":"plantuml","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/plantuml?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["8039-1","1:1.2017.15-1","1:1.2017.15-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"plantuml","binary_version":"1:1.2017.15-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0858.json"}},{"package":{"name":"plantuml","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/plantuml?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.2018.13+ds-2","1:1.2018.13+ds-2ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"plantuml","binary_version":"1:1.2018.13+ds-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0858.json"}},{"package":{"name":"plantuml","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/plantuml?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.2020.2+ds-1","1:1.2020.2+ds-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"plantuml","binary_version":"1:1.2020.2+ds-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0858.json"}},{"package":{"name":"plantuml","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/plantuml?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.2020.2+ds-3","1:1.2020.2+ds-3ubuntu1","1:1.2020.2+ds-3ubuntu1.1"],"ecosystem_specific":{"binaries":[{"binary_version":"1:1.2020.2+ds-3ubuntu1.1","binary_name":"plantuml"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0858.json"}},{"package":{"name":"plantuml","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/plantuml?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.2020.2+ds-6"],"ecosystem_specific":{"binaries":[{"binary_name":"plantuml","binary_version":"1:1.2020.2+ds-6"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0858.json"}},{"package":{"name":"plantuml","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/plantuml?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.2020.2+ds-6","1:1.2020.2+ds-6build1"],"ecosystem_specific":{"binaries":[{"binary_name":"plantuml","binary_version":"1:1.2020.2+ds-6build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0858.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"CVSS_V4","score":"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"},{"type":"Ubuntu","score":"medium"}]}