Atlassian Addresses Critical Vulnerability CVE-2023-22527 in Confluence and Jira Products
Atlassian has addressed a critical vulnerability, CVE-2023-22527, in its Confluence and Jira products, which poses a significant risk of exploitation due to its maximum CVSS score of 10. The vulnerability allows arbitrary code execution through template injection without requiring login credentials, prompting the National Cyber Security Centre to elevate its threat assessment to 'High/High'. Systems exposed to the internet are particularly vulnerable, with over 180 affected Atlassian Confluence environments identified in the Netherlands.
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Atlassian has resolved vulnerabilities in various products including Confluence and Jira, particularly focusing on CVE-2023-22527, which has a maximum CVSS score of 10. A proof of concept code has been released, increasing urgency and prompting the National Cyber Security Centre (NCSC) to raise its threat assessment to 'High/High'.
This indicates a significant risk of exploitation and potential damage. The vulnerability allows arbitrary code execution through template injection on vulnerable Confluence Data Center and Server systems without requiring login credentials.
Systems directly connected to the internet are easily discoverable by malicious actors, heightening the risk of exploitation. According to Shadowserver Foundation, over 180 Atlassian Confluence environments are identified in the Netherlands. The vulnerability affects Confluence Data Center & Server versions prior to December 5, 2023, including version 8.4.5.
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