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js · tinymceCritical

TinyMCE Stored XSS via forged mce:protected comments

Stored XSS vulnerability via forged mce:protected comments bypasses sanitization and injects scripts on content restore.

09 Jun 2026Read 1 minSeverity: act now

What changed

Stored XSS vulnerability via forged mce:protected comments bypasses sanitization and injects scripts on content restore.

Who it affects

Users who utilize the protect option in TinyMCE.

What to do today

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

The trail
Collected Audited Written Published