CVE-2026-47762

TinyMCE Cross-Site Scripting (XSS) vulnerability through `mce:protected` comments

MEDIUM

5.4

CVSS Score

Published: May 28, 2026 at 03:21 PM UTC

Updated: October 14, 2026 at 08:10 PM UTC

2 products affected across 2 vendorsTinymceTinymce

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Severity

MEDIUM5.4

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

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 via forged mce:protected comments. Allows attackers to bypass sanitization and inject scripts that execute when content is restored. Impacts users who utilize the protect option. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Tinymce · Tiny

95%

v < 5.11.16.0.0 ≤ v < 7.9.38.0.0 ≤ v < 8.5.1

Tinymce · Tinymce

90%

v < 5.11.1

Affected range stops below 5.11.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.9.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.5.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://github.com/tinymce/tinymce/security/advisories/GHSA-v98h-vmpc-fpqv

References (3)

x_refsource_CONFIRMVendor Advisory

Source: cverecord

https://github.com/tinymce/tinymce/security/advisories/GHSA-v98h-vmpc-fpqv

x_refsource_MISCRelease Notes

Source: cverecord

https://www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/#overview

x_refsource_MISCRelease Notes

Source: cverecord

https://www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/#overview

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: REQUIRED
Scope: CHANGED
Confidentiality: LOW
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusANALYZED

CWE

CWE-79

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