CVE-2026-47761, CoreCVE

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HIGH

TinyMCE Cross-Site Scripting (XSS) vulnerability using media plugin `data-mce-object` injection

Published May 28, 2026

8.7

HIGH

CVSS 3.1

EPSS 0.41%

Description

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 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. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.

Affected products

Vendor Tinymce Product Tinymce Default
n/a
- Version
  < 5.11.1
  Status
  affected
  Constraints
  -
- Version
  >= 6.0.0, <= 6.8.6
  Status
  affected
  Constraints
  -
- Version
  >= 7.0.0, < 7.9.3
  Status
  affected
  Constraints
  -
- Version
  >= 8.0.0, < 8.5.1
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Tinymce

n/a

Version	Status	Constraints
< 5.11.1	affected	-
>= 6.0.0, <= 6.8.6	affected	-
>= 7.0.0, < 7.9.3	affected	-
>= 8.0.0, < 8.5.1	affected	-

tinymce

npm

Introduced 0 Fixed not fixed
tinymce

npm

Introduced 6.0.0 Fixed 7.9.3
tinymce

npm

Introduced 8.0.0 Fixed 8.5.1
TinyMCE

NuGet

Introduced 0 Fixed not fixed
TinyMCE

NuGet

Introduced 6.0.0 Fixed 7.9.3
TinyMCE

NuGet

Introduced 8.0.0 Fixed 8.5.1
tinymce/tinymce

Packagist

Introduced 0 Fixed not fixed
tinymce/tinymce

Packagist

Introduced 6.0.0 Fixed 7.9.3
tinymce/tinymce

Packagist

Introduced 8.0.0 Fixed 8.5.1

Ecosystem	Package	Introduced	Fixed
npm	tinymce	0	not fixed
npm	tinymce	6.0.0	7.9.3
npm	tinymce	8.0.0	8.5.1
NuGet	TinyMCE	0	not fixed
NuGet	TinyMCE	6.0.0	7.9.3
NuGet	TinyMCE	8.0.0	8.5.1
Packagist	tinymce/tinymce	0	not fixed
Packagist	tinymce/tinymce	6.0.0	7.9.3
Packagist	tinymce/tinymce	8.0.0	8.5.1

Remediation

No remediation recorded yet.

Metrics

0.41% 0.00413

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00413

Score over time

May–Oct 2026

EPSS v4
EPSS v5

Percentile over time

EPSS v4
EPSS v5

Table of values (3 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.41% (0.00413)	33.19th	v5 (v2026.06.15)
Jun 15, 2026	0.20% (0.00196)	9.39th	v5 (v2026.06.15)
May 29, 2026	0.03% (0.00032)	9.70th	v4 (v2025.03.14)

Weaknesses (1)

CWE-79

Cross-site Scripting (XSS)

References (5)

https://github.com/advisories/GHSA-vg35-5wq7-3x7w
Advisory
https://github.com/tinymce/tinymce/security/advisories/GHSA-vg35-5wq7-3x7w
x_refsource_CONFIRMPatchVendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-47761
https://www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/#overview
x_refsource_MISCRelease Notes
https://www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/#overview
x_refsource_MISCRelease Notes

Link	Providers	Tags
https://github.com/advisories/GHSA-vg35-5wq7-3x7w		Advisory
https://github.com/tinymce/tinymce/security/advisories/GHSA-vg35-5wq7-3x7w		x_refsource_CONFIRMPatchVendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-47761
https://www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/#overview		x_refsource_MISCRelease Notes
https://www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/#overview		x_refsource_MISCRelease Notes