Vigie VulnDBEuropean-hosted Vulnerability DB
FR
Menu

GHSA-v98h-vmpc-fpqv

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

At a glance

Published
Updated
CVE
CVE-2026-47762
CVSS_V3
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Description

### 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.

Affected packages

PackageVersions
npm · tinymceintroduced 0, last affected 5.10.9
npm · tinymceintroduced 6.0.0, fixed 7.9.3
npm · tinymceintroduced 8.0.0, fixed 8.5.1
NuGet · TinyMCEintroduced 0, last affected 5.10.9
NuGet · TinyMCEintroduced 6.0.0, fixed 7.9.3
NuGet · TinyMCEintroduced 8.0.0, fixed 8.5.1
Packagist · tinymce/tinymceintroduced 0, last affected 5.10.9
Packagist · tinymce/tinymceintroduced 6.0.0, fixed 7.9.3
Packagist · tinymce/tinymceintroduced 8.0.0, fixed 8.5.1

References

Sources

SourceLicence
OSV.devCC-BY 4.0 — GitHub Advisory Database