CVE-2013-4701: Janrain PHP-Openid

High severity, CVSS 7.5. EPSS: 3% chance of exploitation in the next 30 days.

Auth/Yadis/XML.php in PHP OpenID Library 2.2.2 and earlier allows remote attackers to read arbitrary files, send HTTP requests to intranet servers, or cause a denial of service (CPU and memory consumption) via XRDS data containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.

Affected products

• Janrain PHP-Openid: up to and including 2.2.2

Published 2013-08-21. Last modified 2026-06-16.