Description
wp-includes/feed.php in WordPress before 4.9.1 does not properly restrict enclosures in RSS and Atom fields, which might allow attackers to conduct XSS attacks via a crafted URL.
Remediation
References
Related Vulnerabilities
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ReviveAdserver Improper Access Control Vulnerability (CVE-2015-7369)
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WordPress Plugin WPtouch Multiple Cross-Site Scripting Vulnerabilities (3.7.3)