GitHub Advisoryadvisory · Packagist
GHSA-4q66-g4mm-8rg5 Silverstripe has Cross-site Scripting (XSS) vulnerabilities inherited from TinyMCE
MEDIUM
Official page ↗
- Ecosystem
- Packagist
- Packages
- silverstripe/admin
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- Reviewed
- 2023-07-31
Affected packages
• Packagist silverstripe/admin: < 1.13.6 → fixed in 1.13.6
Description
TinyMCE 4.x is vulnerable to several XSS vectors, which had been patched in later versions. Two of these have been identified as affecting `silverstripe/admin`.
Only Silverstripe CMS 4 is affected by this issue. It's not possible to upgrade Silverstripe CMS 4 to use a more recent release of TinyMCE without introducing breaking changes. Instead, the security patches that shipped in later releases of TinyMCE have been backported to the TinyMCE version bundled in `silverstripe/admin`.
Silverstripe CMS 5 is not affected by those vulnerabilities because it uses TinyMCE 6.
You can find more information about the underlying vulnerabilities in those GitHub security advisories:
• GHSA-5h9g-x5rv-25wg Cross-site scripting vulnerability in TinyMCE
• GHSA-w7jx-j77m-wp65 Cross-site scripting vulnerability in TinyMCE
References
- https://github.com/silverstripe/silverstripe-admin/security/advisories/GHSA-4q66-g4mm-8rg5 web
- https://github.com/silverstripe/silverstripe-admin/commit/cafc1c4de58f1553b019dc2f8a62f835cabdbeb2 web
- https://github.com/advisories/GHSA-5h9g-x5rv-25wg advisory
- https://github.com/advisories/GHSA-w7jx-j77m-wp65 advisory
- https://github.com/silverstripe/silverstripe-admin package