Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-4q66-g4mm-8rg5
Advisory ID github_osv/GHSA-4q66-g4mm-8rg5
Aliases
Summary Silverstripe has Cross-site Scripting (XSS) vulnerabilities inherited from TinyMCE 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](https://github.com/advisories/GHSA-5h9g-x5rv-25wg) - [GHSA-w7jx-j77m-wp65 Cross-site scripting vulnerability in TinyMCE](https://github.com/advisories/GHSA-w7jx-j77m-wp65)
Status Published
Exploitability 0.5
Weighted Severity 4.9
Risk 2.5
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (0)
There are no known CWE.
System Score Found at
cvssv3.1 5.4 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/07/GHSA-4q66-g4mm-8rg5/GHSA-4q66-g4mm-8rg5.json
generic_textual MODERATE
Reference id Reference type URL
https://github.com/silverstripe/silverstripe-admin
https://github.com/silverstripe/silverstripe-admin/commit/cafc1c4de58f1553b019dc2f8a62f835cabdbeb2
GHSA-4q66-g4mm-8rg5 https://github.com/silverstripe/silverstripe-admin/security/advisories/GHSA-4q66-g4mm-8rg5
GHSA-5h9g-x5rv-25wg https://github.com/advisories/GHSA-5h9g-x5rv-25wg
GHSA-w7jx-j77m-wp65 https://github.com/advisories/GHSA-w7jx-j77m-wp65
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/07/GHSA-4q66-g4mm-8rg5/GHSA-4q66-g4mm-8rg5.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.