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MEDIUM6.1

GHSA-jfxw-6c5v-c42f

Pimcore Admin Classic Bundle Cross-site Scripting (XSS) in PDF previews

Quick fix

GHSA-jfxw-6c5v-c42f — pimcore/admin-ui-classic-bundle: upgrade to the fixed version with the command below.

composer require pimcore/admin-ui-classic-bundle:^1.2.0

Details

### Impact This vulnerability has the potential to steal a user's cookie and gain unauthorized access to that user's account through the stolen cookie or redirect users to other malicious sites.

Proof of Concept Step 1. Go to /admin and login. Step 2. In Documents, go to home -> click on Sample Content -> click Document folder Step 3. Upload file PDF content XSS payload

### Patches Apply patches https://github.com/pimcore/pimcore/commit/757375677dc83a44c6c22f26d97452cc5cda5d7c.patch https://github.com/pimcore/admin-ui-classic-bundle/commit/19fda2e86557c2ed4978316104de5ccdaa66d8b9.patch

### Workarounds Update to version 1.2.0 or apply patches manually https://github.com/pimcore/pimcore/commit/757375677dc83a44c6c22f26d97452cc5cda5d7c.patch https://github.com/pimcore/admin-ui-classic-bundle/commit/19fda2e86557c2ed4978316104de5ccdaa66d8b9.patch

Are you affected?

Enter the version of the package you're using.

Affected packages

Packagist/pimcore/admin-ui-classic-bundle
Introduced in: 0Fixed in: 1.2.0
Fixcomposer require pimcore/admin-ui-classic-bundle:^1.2.0

References