CVE-2026-47759

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Source
https://cve.org/CVERecord?id=CVE-2026-47759
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47759.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-47759
Aliases
Downstream
CLEANSTART (2)
CLSA (3)
UBUNTU (1)
Published
2026-05-28T15:20:11Z
Modified
2026-10-21T02:58:16Z
Severity
  • 8.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N CVSS Calculator
Summary
TinyMCE Cross-Site Scripting (XSS) vulnerability using through data-mce- prefixed src, href, style attributes
Details

TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerability via unsanitized data-mce-* attributes (data-mce-href, data-mce-src, data-mce-style). Allows attackers to inject malicious values that override safe attributes during serialization, bypassing validation. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-79"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47759.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "fixed":  "5.11.1"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "StringRangeExpression"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/tinymce/tinymce

Affected ranges

Type
GIT
Repo
https://github.com/tinymce/tinymce
Events
Introduced
4cc623897917472ba418f1378170727d7a94575b
Fixed
9dac5bb3c875b9c5de43a3f6ea33f55437e77325
Introduced
9f7ab4d2acef062e7f2cd85e7498e3016446ff65
Fixed
03573dd3ca7ac79f79b8f6e66f3b4256d3e1de36
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "6.0.0"
                },
                {
                    "fixed":  "7.9.3"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "cpe":  "cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "8.0.0"
                },
                {
                    "fixed":  "8.5.1"
                }
            ],
            "source":  "CPE_RANGE"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47759.json"