LowGHSA-779c-7w4p-2c4g

Silverstripe admin XSS Vulnerability via WYSIWYG editor

Published 22 May 2024 · Updated 7 Dec 2024

Affected packages

silverstripe/adminComposer

Affected: >=1.0.3 <1.0.4
Fixed in: 1.0.4

Update to the fixed version for your release line, for example:composer require silverstripe/admin:^1.0.4

silverstripe/adminComposer

Affected: >=1.1.0 <1.1.1
Fixed in: 1.1.1

Update to the fixed version for your release line, for example:composer require silverstripe/admin:^1.1.1

Details

It is possible for a bad actor with access to the CMS to make use of onmouseover or onmouseout attributes in the WYSIWYG editor to embed malicious javascript.

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.