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php · tinymceCritical

TinyMCE Stored XSS via forged mce:protected comments

Stored XSS vulnerability via forged mce:protected comments allows attackers to bypass sanitization and inject scripts when content is restored.

09 Jun 2026Read 1 minSeverity: act now

What changed

Stored XSS vulnerability via forged mce:protected comments allows attackers to bypass sanitization and inject scripts when content is restored.

Who it affects

Users who utilize the protect option in TinyMCE.

What to do today

Upgrade to TinyMCE 8.5.1 or higher, TinyMCE 7.9.3 or higher, or TinyMCE 5.11.1 LTS or higher.

The trail
Collected Audited Written Published