GHSA-v98h-vmpc-fpqv
TinyMCE Cross-Site Scripting (XSS) vulnerability through `mce:protected` comments
Details
### Impact 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.
### Patches Patched by validating decoded mce:protected content against configured protect regex rules before restoring. Users should upgrade to the latest patched version.
### Workarounds No official workaround available.
### Fix To avoid this vulnerability:
Upgrade to TinyMCE 8.5.1 or higher. Upgrade to TinyMCE 7.9.3 or higher. Upgrade to TinyMCE 5.11.1 LTS or higher for TinyMCE 5.x (only available as part of commercial [long-term support](https://www.tiny.cloud/long-term-support/) contract).
### Acknowledgements Tiny thanks [Ivan Babenko](https://github.com/he1d3n) for their help identifying this vulnerability.
Are you affected?
Enter the version of the package you're using.
Affected packages
0 No fixed version published yet for tinymce (npm). Pin to a known-safe version or switch to an alternative.
0 No fixed version published yet for TinyMCE (nuget). Pin to a known-safe version or switch to an alternative.
0 No fixed version published yet for tinymce/tinymce (composer). Pin to a known-safe version or switch to an alternative.
6.0.0 Fixed in: 7.9.3 composer require tinymce/tinymce:^7.9.3 8.0.0 Fixed in: 8.5.1 composer require tinymce/tinymce:^8.5.1 References
- https://github.com/tinymce/tinymce/security/advisories/GHSA-v98h-vmpc-fpqv [WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2026-47762 [ADVISORY]
- https://github.com/tinymce/tinymce [PACKAGE]
- https://www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/#overview [WEB]
- https://www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/#overview [WEB]