Description
TinyMCE versions before 5.10.0 are affected by a cross-site scripting vulnerability. A remote and unauthenticated attacker could introduce crafted image or link URLs that would result in the execution of arbitrary JavaScript in an editing user's browser.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | TinyMCE | < 5.10.0 | 5.10.0 |
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 | < 5.10.0 | 5.10.0 | GHSA-r8hm-w5f7-wj39 |
| NuGet | TinyMCE | < 5.10.0 | 5.10.0 | GHSA-r8hm-w5f7-wj39 |
| Packagist | tinymce/tinymce | < 5.10.0 | 5.10.0 | GHSA-r8hm-w5f7-wj39 |
| PyPI | django-tinymce | < 3.4.0 | 3.4.0 | PYSEC-2026-632 |
References
- GitHub Security Advisory (GHSA-r8hm-w5f7-wj39) vendor-advisory
- https://github.com/jazzband/django-tinymce/issues/366 issue-tracking
- django-tinymce 3.4.0 Release Notes related release-notes
- https://pypi.org/project/django-tinymce/3.4.0/ related
- GitHub Security Advisory (GHSA-r8hm-w5f7-wj39) vendor-advisory
- https://vulncheck.com/advisories/vc-advisory-GHSA-r8hm-w5f7-wj39 third-party-advisory