silverstripe/silverstripe-admin · Security
Silverstripe has Cross-site Scripting (XSS) vulnerabilities inherited from TinyMCE
- GHSA ID
- GHSA-4q66-g4mm-8rg5
- Severity
- medium
- Published
- Updated
- CVSS
- 5.4 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- CVSS v3
- 5.4 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
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:
References
- https://github.com/silverstripe/silverstripe-admin/security/advisories/GHSA-4q66-g4mm-8rg5 ↗
- https://github.com/silverstripe/silverstripe-admin/commit/cafc1c4de58f1553b019dc2f8a62f835cabdbeb2 ↗
- https://github.com/advisories/GHSA-5h9g-x5rv-25wg ↗
- https://github.com/advisories/GHSA-w7jx-j77m-wp65 ↗
- https://github.com/advisories/GHSA-4q66-g4mm-8rg5 ↗