CVE-2022-27911: 
Joomla vulnerability analysis and mitigation

The vulnerability CVE-2022-27911 is a Path Disclosure vulnerability affecting Joomla! CMS version 4.2.0. The issue was discovered on August 27, 2022, and was fixed on August 30, 2022, with the release of version 4.2.1. This vulnerability was caused by multiple Full Path Disclosures due to missing '_JEXEC or die check' implementations, which emerged as a result of PSR12 changes introduced in version 4.2.0 (Joomla Security).

The vulnerability is classified as having Low severity and Low probability. The specific issue involves path disclosure vulnerabilities resulting from missing '_JEXEC or die check' implementations. This security flaw emerged following PSR12 changes that were implemented in Joomla! version 4.2.0 (Joomla Security).

The impact of this vulnerability is considered Low. It could potentially lead to the disclosure of full system paths, which might provide attackers with information about the server's directory structure (Joomla Security).

The vulnerability was patched in Joomla! version 4.2.1. Users running affected versions (4.2.0) are advised to upgrade to version 4.2.1 to mitigate this security issue. The fix was implemented through public tracker issue #38615 (Joomla Security).