GHSA-q742-qvgc-gc2f
Suggest an improvement- Source
- https://github.com/advisories/GHSA-q742-qvgc-gc2f
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-q742-qvgc-gc2f/GHSA-q742-qvgc-gc2f.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-q742-qvgc-gc2f
- Aliases
-
- CVE-2026-47759
- Published
- 2026-06-05T20:27:50Z
- Modified
- 2026-06-05T20:45:11.383035027Z
- 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
-
Impact
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.
Patches
Patched by stripping unsafe data-mce-* attributes during parsing. Users should upgrade to the latest patched versions (5 LTS, 7.x, 8.x).
Workarounds
No official workaround available.
Fix
To avoid this vulnerability:
Upgrade to TinyMCE 8.5.1 or higher. Upgrade to TinyMCE 7.9.3 or higher. Upgrade to TinyMCE 5.11.1 LTS or higher for TinyMCE 5.x (only available as part of commercial long-term support contract).
Acknowledgements
Tiny thanks Tadi Kadango (website) and Ivan Babenko for their help identifying this vulnerability.
- Database specific
{ "github_reviewed": true, "github_reviewed_at": "2026-06-05T20:27:50Z", "nvd_published_at": "2026-05-28T16:16:28Z", "severity": "HIGH", "cwe_ids": [ "CWE-79" ] }- References
Affected packages
npm
tinymce
Package
- Name
- tinymce
- View open source insights on deps.dev
- Purl
- pkg:npm/tinymce
tinymce
Package
- Name
- tinymce
- View open source insights on deps.dev
- Purl
- pkg:npm/tinymce
tinymce
Package
- Name
- tinymce
- View open source insights on deps.dev
- Purl
- pkg:npm/tinymce
NuGet
TinyMCE
Package
- Name
- TinyMCE
- View open source insights on deps.dev
- Purl
- pkg:nuget/TinyMCE
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.11.1
Affected versions
3.*
3.4.3.2
3.4.4
3.4.5
3.4.7
3.5.0
3.5.0.1
3.5.1
3.5.1.1
3.5.2
3.5.3
3.5.4
3.5.4.1
3.5.5
3.5.6
3.5.7
3.5.8
4.*
4.0.0
4.0.1
4.0.2
4.0.4
4.0.5
4.0.6
4.0.8
4.0.9
4.0.10
4.0.11
4.0.13
4.0.14
4.0.15
4.0.16
4.0.17
4.0.18
4.0.19
4.0.20
4.0.21
4.0.22
4.0.23
4.0.24
4.0.25
4.0.26
4.0.27
4.0.28
4.1.0
4.1.1
4.1.2
4.1.3
4.1.4
4.1.5
4.1.6
4.1.7
4.1.8
4.1.9
4.1.10
4.2.0
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.2.6
4.2.7
4.2.8
4.3.0
4.3.1
4.3.2
4.3.3
4.3.4
4.3.6
4.3.7
4.3.8
4.3.9
4.3.10
4.3.11
4.3.12
4.3.13
4.4.0
4.4.1
4.4.2
4.4.3
4.5.0
4.5.1
4.5.2
4.5.3
4.5.4
4.5.5
4.5.6
4.5.7
4.5.8
4.6.0
4.6.1
4.6.2
4.6.3
4.6.4
4.6.5
4.6.6
4.6.7
4.7.0
4.7.3
4.7.4
4.7.5
4.7.6
4.7.7
4.7.8
4.7.9
4.7.10
4.7.11
4.7.12
4.7.13
4.8.0
4.8.1
4.8.2
4.8.3
4.8.4
4.8.5
4.9.0
4.9.1
4.9.2
4.9.3
4.9.4
4.9.5
4.9.6
4.9.7
4.9.8
4.9.9
4.9.10
4.9.11
5.*
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.0.5
5.0.6
5.0.7
5.0.8
5.0.9
5.0.10
5.0.11
5.0.12
5.0.13
5.0.14
5.0.15
5.0.16
5.1.0
5.1.1
5.1.2
5.1.3
5.1.4
5.1.5
5.1.6
5.2.0
5.2.1
5.2.2
5.3.0
5.3.1
5.3.2
5.4.0
5.4.1
5.4.2
5.5.0
5.5.1
5.6.0
5.6.1
5.6.2
5.7.0
5.7.1
5.8.0
5.8.1
5.8.2
5.9.0
5.9.1
5.9.2
5.10.0
5.10.1
5.10.2
5.10.3
5.10.4
5.10.5
5.10.6
5.10.7
5.10.8
5.10.9
TinyMCE
Package
- Name
- TinyMCE
- View open source insights on deps.dev
- Purl
- pkg:nuget/TinyMCE
Affected versions
6.*
6.0.0
6.0.1
6.0.2
6.0.3
6.1.0
6.1.1
6.1.2
6.2.0
6.3.0
6.3.1
6.3.2
6.4.0
6.4.1
6.4.2
6.5.0
6.5.1
6.6.2
6.7.0
6.7.1
6.7.2
6.7.3
6.8.0
6.8.1
6.8.2
6.8.3
6.8.4
6.8.5
6.8.6
7.*
7.0.0
7.0.1
7.1.0
7.1.1
7.1.2
7.2.0
7.2.1
7.3.0
7.4.0
7.4.1
7.5.0
7.5.1
7.6.0
7.6.1
7.7.0
7.7.1
7.7.2
7.8.0
7.9.0
7.9.1
7.9.2
TinyMCE
Package
- Name
- TinyMCE
- View open source insights on deps.dev
- Purl
- pkg:nuget/TinyMCE
Packagist
tinymce/tinymce
Package
- Name
- tinymce/tinymce
- Purl
- pkg:composer/tinymce%2Ftinymce
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected
Affected versions
4.*
4.0.0
4.0.1
4.0.2
4.0.3
4.0.4
4.0.5
4.0.6
4.0.7
4.0.8
4.0.9
4.0.10
4.0.11
4.0.12
4.0.13
4.0.14
4.0.15
4.0.16
4.0.17
4.0.18
4.0.19
4.0.20
4.0.21
4.0.22
4.0.23
4.0.24
4.0.25
4.0.26
4.0.27
4.0.28
4.1.0
4.1.1
4.1.2
4.1.3
4.1.4
4.1.5
4.1.6
4.1.7
4.1.8
4.1.9
4.1.10
4.2.0
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.2.6
4.2.7
4.2.8
4.3.0
4.3.1
4.3.2
4.3.3
4.3.4
4.3.6
4.3.7
4.3.8
4.3.9
4.3.10
4.3.11
4.3.12
4.3.13
4.4.0
4.4.1
4.4.2
4.4.3
4.5.0
4.5.1
4.5.2
4.5.3
4.5.4
4.5.5
4.5.6
4.5.7
4.5.8
4.5.9
4.5.12
4.6.0
4.6.1
4.6.2
4.6.3
4.6.4
4.6.5
4.6.6
4.6.7
4.7.0
4.7.1
4.7.2
4.7.3
4.7.4
4.7.5
4.7.6
4.7.7
4.7.8
4.7.9
4.7.10
4.7.11
4.7.12
4.7.13
4.8.0
4.8.1
4.8.2
4.8.3
4.8.4
4.8.5
4.9.0
4.9.1
4.9.2
4.9.3
4.9.4
4.9.5
4.9.6
4.9.7
4.9.8
4.9.9
4.9.10
4.9.11
5.*
5.0.0
5.0.1
5.0.2
5.0.3
5.0.4
5.0.5
5.0.6
5.0.7
5.0.8
5.0.9
5.0.10
5.0.11
5.0.12
5.0.13
5.0.14
5.0.15
5.0.16
5.1.0
5.1.1
5.1.2
5.1.3
5.1.4
5.1.5
5.1.6
5.2.0
5.2.1
5.2.2
5.3.0
5.3.1
5.3.2
5.4.0
5.4.1
5.4.2
5.5.0
5.5.1
5.6.0
5.6.1
5.6.2
5.7.0
5.7.1
5.8.0
5.8.1
5.8.2
5.9.0
5.9.1
5.9.2
5.10.0
5.10.1
5.10.2
5.10.3
5.10.4
5.10.5
5.10.6
5.10.7
5.10.8
5.10.9
6.*
6.0.0
6.0.1
6.0.2
6.0.3
6.1.0
6.1.1
6.1.2
6.2.0
6.3.0
6.3.1
6.3.2
6.4.0
6.4.1
6.4.2
6.5.0
6.5.1
6.6.0
6.6.1
6.6.2
6.7.0
6.7.1
6.7.2
6.7.3
6.8.0
6.8.1
6.8.2
6.8.3
6.8.4
6.8.5
6.8.6
7.*
7.0.0
7.0.1
7.1.0
7.1.1
7.1.2
7.2.0
7.2.1
7.3.0
7.4.0
7.4.1
7.5.0
7.5.1
7.6.0
7.6.1
7.7.0
7.7.1
7.7.2
7.8.0
7.9.0
7.9.1
7.9.2
7.9.3
8.*
8.0.0
8.0.1
8.0.2
8.1.0
8.1.1
8.1.2
8.2.0
8.2.1
8.2.2
8.3.0
8.3.1
8.3.2
8.4.0
8.5.0
8.5.1
8.6.0
tinymce/tinymce
Package
- Name
- tinymce/tinymce
- Purl
- pkg:composer/tinymce%2Ftinymce
Affected versions
6.*
6.0.0
6.0.1
6.0.2
6.0.3
6.1.0
6.1.1
6.1.2
6.2.0
6.3.0
6.3.1
6.3.2
6.4.0
6.4.1
6.4.2
6.5.0
6.5.1
6.6.0
6.6.1
6.6.2
6.7.0
6.7.1
6.7.2
6.7.3
6.8.0
6.8.1
6.8.2
6.8.3
6.8.4
6.8.5
6.8.6
7.*
7.0.0
7.0.1
7.1.0
7.1.1
7.1.2
7.2.0
7.2.1
7.3.0
7.4.0
7.4.1
7.5.0
7.5.1
7.6.0
7.6.1
7.7.0
7.7.1
7.7.2
7.8.0
7.9.0
7.9.1
7.9.2