An authenticated user can inject and store malicious scripts through the Create Entity page in Apache Atlas. The stored payload is executed whenever any user subsequently loads the affected page, potentially enabling session hijacking, credential theft, or defacement. This is a classic Stored Cross‑Site Scripting flaw identified as CWE‑80.

The flaw exists in Apache Atlas versions 2.4.0 and earlier, distributed by the Apache Software Foundation. Users of these releases should upgrade to 2.5.0 or later to eliminate the vulnerability.

Because the vulnerability requires valid authenticated access to the web interface, the probability of exploitation depends on the attacker's ability to compromise user credentials. The CVSS score of 5.4 indicates a moderate severity, and no EPSS score is available. The issue is not listed in CISA KEV, but the potential impact of script execution across affected users warrants prompt remediation.