Incorrect Authorization Affecting org.xwiki.platform:xwiki-platform-repository-server-ui package, versions [,15.10.9)[16.0.0-rc-1,16.3.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published13 Dec 2024
- disclosed12 Dec 2024
- creditUnknown
Introduced: 12 Dec 2024
CVE-2024-55662 (opens in a new tab)How to fix?
Upgrade org.xwiki.platform:xwiki-platform-repository-server-ui to version 15.10.9, 16.3.0 or higher.
Overview
org.xwiki.platform:xwiki-platform-repository-server-ui is an application for managing extensions in a repository based on XWiki.
Affected versions of this package are vulnerable to Incorrect Authorization through the ExtensionCode.ExtensionClass object. An authenticated attacker without script nor programming rights can execute arbitrary code on the server by manipulating the description field to execute Groovy scripts.
Workaround
This vulnerability can be mitigated by disabling the Extension Repository Application if it is not needed, or by manually applying this patch to the page ExtensionCode.ExtensionSheet, as well as this patch to the page ExtensionCode.ExtensionAuthorsDisplayer.
PoC
As a normal user without script nor programming rights, go to your profile and add an object of type ExtensionCode.ExtensionClass. Set the description to {{async}}{{groovy}}println("Hello from Description"){{/groovy}}{{/async}} and press Save and View. If the description displays as Hello from Description without any error, then the instance is vulnerable.