Missing JSON Content-Type header in a script in Revive Adserver 6.0.1 and 5.5.2 and earlier versions causes a stored XSS attack to be possible for a logged in manager user.
Conclusion & alert: CVE-2025-52667 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.30%).Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB).Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
Public exploit references (Exploit-DB) for CVE-2025-52667
Exploit prediction scoring system (EPSS) score for CVE-2025-52667
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).