CVE-2026-58504

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Source
https://cve.org/CVERecord?id=CVE-2026-58504
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58504.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-58504
Aliases
  • GHSA-c76x-r78m-phwx
Published
2026-09-21T16:15:30Z
Modified
2026-09-23T03:45:23Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
draw.io: Stored XSS on file open via editable=0 sibling cell — patch bypass of CVE-2026-46642
Details

draw.io is a configurable diagramming and whiteboarding application. Prior to version 30.2.5, opening or importing a crafted .drawio file can execute attacker-controlled JavaScript in the draw.io origin when selected cells are processed by TextFormatPanel.addFont() in src/main/webapp/js/grapheditor/Format.js. An HTML sibling cell keeps the formatted-label path enabled while an editable=0 plain-text sibling is excluded from the merged selection style but remains in the iteration set. graph.cellRenderer.getLabelValue() returns that plain-text label without HTML encoding, and mxUtils.canConvertHtmlToSvg() parses it as HTML, bypassing the earlier CVE-2026-46642 remediation. Successful exploitation can expose diagram data, browser storage, non-HttpOnly cookies, and same-origin actions available to the victim. This issue is fixed in version 30.2.5.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-116",
        "CWE-79"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58504.json"
}
References

Affected packages

Git / github.com/jgraph/drawio

Affected ranges

Type
GIT
Repo
https://github.com/jgraph/drawio
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
7976c02e1b10b1687c028d82782f9f5d90a885d6
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "30.2.5"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v24.*
v24.8.9
v25.*
v25.0.0
v25.0.1
v25.0.2
v26.*
v26.0.0
v26.0.13
v26.0.15
v26.0.16
v26.0.2
v26.0.3
v26.0.4
v26.0.6
v26.0.7
v26.0.9
v26.1.0
v26.1.1
v26.2.15
v26.2.2
v26.2.7
v26.2.8
v27.*
v27.0.2
v27.0.5
v27.0.9
v27.1.6
v28.*
v28.0.1
v28.0.3
v28.0.4
v28.0.5
v28.0.6
v28.0.7
v28.0.9
v28.1.1
v28.1.2
v28.2.0
v28.2.3
v28.2.5
v28.2.7
v28.2.8
v28.2.9
v29.*
v29.0.2
v29.0.3
v29.2.2
v29.2.6
v29.2.7
v29.2.9
v29.3.0
v29.3.2
v29.3.5
v29.3.6
v29.5.1
v29.5.2
v29.6.1
v29.6.10
v29.6.3
v29.6.4
v29.6.5
v29.6.6
v29.6.7
v29.7.11
v29.7.12
v29.7.8
v29.7.9
v30.*
v30.0.0
v30.0.1
v30.0.2
v30.0.4
v30.2.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58504.json"