CVE-2026-108360

The PhpSpreadsheet PHP library is vulnerable to Server-Side Request Forgery (SSRF) in versions prior to 1.30.7, 2.1.19, 2.4.8, 3.10.8, and 5.10.0. The root cause is that Worksheet oc.Drawing::setPath only validates the initial external-image URL against a whitelist when setAllowExternalImages is ...