CVE-2024-21683: 
Atlassian Fisheye & Crucible vulnerability analysis and mitigation

CVE-2024-21683 was initially reported as a high-severity Remote Code Execution (RCE) vulnerability affecting Confluence Data Center and Server. The vulnerability was discovered internally by Atlassian and initially assigned a CVSS score of 7.2. However, this CVE was later rejected as it may have been a false positive or mistake (NVD).

The vulnerability was initially described as a Remote Code Execution (RCE) vulnerability that could be exploited through a specially crafted JavaScript language file. The attack vector required an authenticated attacker with privileges to add new macro languages. The vulnerability was reported to affect Confluence Data Center and Server installations and was initially assigned a CVSS score of 7.2, indicating high severity (Help Net Security).

According to initial reports, successful exploitation would have allowed an authenticated attacker to execute arbitrary code with high impact to confidentiality, integrity, and availability of the system. The attack required no user interaction but did require specific privileges (Help Net Security).

While initially there were recommendations to upgrade to the latest version, since the CVE has been rejected as a false positive, no specific mitigations are required (NVD).