GHSA-C55V-343G-5XFF Craft CMS: Blind SSRF and Arbitrary JavaScript Injection via Host Header Poisoning in actionResourceJs

Overview Craft CMS is vulnerable to Server-Side Request Forgery SSRF and Arbitrary JavaScript Injection through the /actions/app/resource-js endpoint. By exploiting the default permissive trustedHosts configuration, an attacker can poison the Host or X-Forwarded-Host header to manipulate the...

CVE-2026-41130

Craft CMS is a content management system CMS. In versions on the 4.x branch through 4.17.8 and the 5.x branch through 5.9.14, the resource-js endpoint in Craft CMS allows unauthenticated requests to proxy remote JavaScript resources. When trustedHosts is not explicitly restricted default...

CVE-2026-41130

Craft CMS versions 4.x up to 4.17.8 and 5.x up to 5.9.14 are affected by a SSRF via the resource-js endpoint when trustedHosts is not restricted. An unauthenticated attacker can manipulate the Host header to influence derived baseUrl used in actionResourceJs() and trigger arbitrary outbound HTTP ...

Server-side Request Forgery (SSRF)

Overview craftcms/cms is a content management system. Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the actionResourceJs process. An attacker can cause the server to make arbitrary HTTP requests by supplying a malicious Host header when the trustedHosts...

GHSA-95WR-3F2V-V2WH Craft CMS has a host header injection leading to SSRF via resource-js endpoint

Summary The resource-js endpoint in Craft CMS allows unauthenticated requests to proxy remote JavaScript resources. When trustedHosts is not explicitly restricted default configuration, the application trusts the client-supplied Host header. This allows an attacker to control the derived baseUrl,...

Craft CMS has a host header injection leading to SSRF via resource-js endpoint

Summary The resource-js endpoint in Craft CMS allows unauthenticated requests to proxy remote JavaScript resources. When trustedHosts is not explicitly restricted default configuration, the application trusts the client-supplied Host header. This allows an attacker to control the derived baseUrl,...

firefox: thunderbird: Cross-origin access to PDF contents through multipart responses

A flaw was found in Mozilla. The Mozilla Foundation's Security Advisory describes the issue as follows: An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the resource://pdf.js origin. This could allow them to access cross-origin PDF content. This...