Description
TinyMCE is an open source rich text editor. From 7.9.3 until 7.9.4 and from 8.5.1 until 8.9.3, the media plugin creates elements crafted through data-mce-object in the active document before sanitization. Those elements can execute malicious scripts during processing, resulting in stored cross-site scripting for users with the media plugin enabled. This issue is fixed in versions 8.9.3 and 7.9.4.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| tinymce | tinymce | >= 8.5.1, < 8.9.3, >= 7.9.3, < 7.9.4 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | tinymce | No fix yet | — |
| Ubuntu 18.04 LTS | tinymce | No fix yet | — |
| Ubuntu 16.04 LTS | tinymce | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | tinymce | >= 8.5.1, < 8.9.3 | 8.9.3 | GHSA-mf2p-h6hf-fcwm |
| npm | tinymce | >= 7.9.3, < 7.9.4 | 7.9.4 | GHSA-mf2p-h6hf-fcwm |
| NuGet | TinyMCE | >= 8.5.1, < 8.9.3 | 8.9.3 | GHSA-mf2p-h6hf-fcwm |
| NuGet | TinyMCE | >= 7.9.3, < 7.9.4 | 7.9.4 | GHSA-mf2p-h6hf-fcwm |
| Packagist | tinymce/tinymce | >= 8.5.1, < 8.9.3 | 8.9.3 | GHSA-mf2p-h6hf-fcwm |
| Packagist | tinymce/tinymce | >= 7.9.3, < 7.9.4 | 7.9.4 | GHSA-mf2p-h6hf-fcwm |
References
- https://github.com/tinymce/tinymce/security/advisories/GHSA-mf2p-h6hf-fcwm
- https://github.com/tinymce/tinymce/commit/bd1ab5ef024c648c3f9c0b409e54a6c227c7d8a2
- https://github.com/tinymce/tinymce/releases/tag/8.9.3
- https://www.tiny.cloud/docs/tinymce/7/7.9.4-release-notes/#overview
- https://www.tiny.cloud/docs/tinymce/latest/8.9.3-release-notes/#overview