MediumGHSA-r97r-64vp-fghm

Silverstripe XSS vulnerability via VirtualPage

Published 22 May 2024 · Updated 7 Dec 2024

Affected package

Affected: >=3.1.0 <3.1.10
Fixed in: 3.1.10

Update to the fixed version for your release line, for example:composer require silverstripe/cms:^3.1.10

Details

A cross-site scripting vulnerability has been discovered in the VirtualPage class.

This vulnerability can only be exploited if a user with CMS access has posted malicious or unescaped HTML into any of the textfields of a page which a VirtualPage refers to.

This has been resolved by ensuring that VirtualPage safely escapes all field content.

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References

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