GHSA-vg35-5wq7-3x7w

Suggest an improvement
Source
https://github.com/advisories/GHSA-vg35-5wq7-3x7w
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-vg35-5wq7-3x7w/GHSA-vg35-5wq7-3x7w.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-vg35-5wq7-3x7w
Aliases
  • CVE-2026-47761
Published
2026-06-05T20:29:43Z
Modified
2026-06-05T20:45:11.485704788Z
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 media plugin `data-mce-object` injection
Details

Impact

Stored XSS vulnerability in the media plugin. Attackers can inject malicious scripts via crafted data-mce-* attributes, which are executed when content is rendered. Impacts users of TinyMCE with the media plugin enabled.

Patches

This vulnerability has been patched in TinyMCE 8.5.1, TinyMCE 7.9.3 and TinyMCE 5.11.1 LTS by ensuring that, when using the media plugin, any content with data-mce-object and data-mce-p-* attributes are properly sanitized.

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 Aymane MAZGUITI and Ange Primiterra for their help identifying this vulnerability.

Database specific
{
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-05T20:29:43Z",
    "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

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-vg35-5wq7-3x7w/GHSA-vg35-5wq7-3x7w.json"
last_known_affected_version_range
"< 5.11.1"
tinymce

Package

Name
tinymce
View open source insights on deps.dev
Purl
pkg:npm/tinymce

Affected ranges

Type
SEMVER
Events
Introduced
6.0.0
Fixed
7.9.3

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-vg35-5wq7-3x7w/GHSA-vg35-5wq7-3x7w.json"
tinymce

Package

Name
tinymce
View open source insights on deps.dev
Purl
pkg:npm/tinymce

Affected ranges

Type
SEMVER
Events
Introduced
8.0.0
Fixed
8.5.1

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-vg35-5wq7-3x7w/GHSA-vg35-5wq7-3x7w.json"
NuGet
TinyMCE

Package

Name
TinyMCE
View open source insights on deps.dev
Purl
pkg:nuget/TinyMCE

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

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
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
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

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-vg35-5wq7-3x7w/GHSA-vg35-5wq7-3x7w.json"
last_known_affected_version_range
"< 5.11.1"
TinyMCE

Package

Name
TinyMCE
View open source insights on deps.dev
Purl
pkg:nuget/TinyMCE

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.0.0
Fixed
7.9.3

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

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-vg35-5wq7-3x7w/GHSA-vg35-5wq7-3x7w.json"
TinyMCE

Package

Name
TinyMCE
View open source insights on deps.dev
Purl
pkg:nuget/TinyMCE

Affected ranges

Type
ECOSYSTEM
Events
Introduced
8.0.0
Fixed
8.5.1

Affected versions

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

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-vg35-5wq7-3x7w/GHSA-vg35-5wq7-3x7w.json"
Packagist
tinymce/tinymce

Package

Name
tinymce/tinymce
Purl
pkg:composer/tinymce%2Ftinymce

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown 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

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-vg35-5wq7-3x7w/GHSA-vg35-5wq7-3x7w.json"
last_known_affected_version_range
"< 5.11.1"
tinymce/tinymce

Package

Name
tinymce/tinymce
Purl
pkg:composer/tinymce%2Ftinymce

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.0.0
Fixed
7.9.3

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

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-vg35-5wq7-3x7w/GHSA-vg35-5wq7-3x7w.json"
tinymce/tinymce

Package

Name
tinymce/tinymce
Purl
pkg:composer/tinymce%2Ftinymce

Affected ranges

Type
ECOSYSTEM
Events
Introduced
8.0.0
Fixed
8.5.1

Affected versions

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

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-vg35-5wq7-3x7w/GHSA-vg35-5wq7-3x7w.json"