CVE-2026-47760, CoreCVE

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HIGH

TinyMCE Cross-Site Scripting (XSS) vulnerability using sanitization bypass through nested SVGs

Published May 28, 2026

8.7

HIGH

CVSS 3.1

EPSS 0.27%

Description

TinyMCE is an open source rich text editor. From 6.8.0 to before 7.1.0, TinyMCE contains an XSS vulnerability caused by improper SVG namespace scope handling in the sanitizer. A crafted payload using nested elements can bypass attribute sanitization and execute arbitrary JavaScript. This vulnerability is fixed in 7.1.0.

Affected products

Vendor Tinymce Product Tinymce Default
n/a
- Version
  >= 6.0.0, < 7.1.0
  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
>= 6.0.0, < 7.1.0	affected	-

TinyMCE

NuGet

Introduced 6.8.0 Fixed 7.1.0
tinymce/tinymce

Packagist

Introduced 6.8.0 Fixed 7.1.0
tinymce

npm

Introduced 6.8.0 Fixed 7.1.0

Ecosystem	Package	Introduced	Fixed
NuGet	TinyMCE	6.8.0	7.1.0
Packagist	tinymce/tinymce	6.8.0	7.1.0
npm	tinymce	6.8.0	7.1.0

Remediation

No remediation recorded yet.

Metrics

0.27% 0.00275

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

EPSS probability 0.00275

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	0.27% (0.00275)	18.03th	v5 (v2026.06.15)
Jun 15, 2026	0.16% (0.00159)	5.38th	v5 (v2026.06.15)
May 29, 2026	0.03% (0.00032)	9.77th	v4 (v2025.03.14)

Weaknesses (1)

CWE-79

Cross-site Scripting (XSS)

References (3)

https://github.com/advisories/GHSA-mh5m-5hw4-5c69
Advisory
https://github.com/tinymce/tinymce/security/advisories/GHSA-mh5m-5hw4-5c69
x_refsource_CONFIRMVendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-47760

Link	Providers	Tags
https://github.com/advisories/GHSA-mh5m-5hw4-5c69		Advisory
https://github.com/tinymce/tinymce/security/advisories/GHSA-mh5m-5hw4-5c69		x_refsource_CONFIRMVendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-47760