As a workaround, disable file upload for all non-trusted users. A patch in version 2.5.264 fixes this vulnerability by adding an additional file extension verification check to the optional (enabled by default) SVG sanitization step to all file uploads that match the SVG mime type. The malicious SVG can only be uploaded by crafting a custom request to the server with a fake MIME type. Scripts do not execute when loaded inside a page via normal `` tags. This allows the attacker to execute malicious JavaScript when the SVG is viewed directly by other users. By creating a crafted SVG file, a malicious Wiki.js user may stage a stored cross-site scripting attack. Wiki.js 2.5.263 and earlier is vulnerable to stored cross-site scripting through a SVG file upload made via a custom request with a fake MIME type. Roundcube before 1.3.17 and 1.4.x before 1.4.12 is prone to XSS in handling an attachment's filename extension when displaying a MIME type warning message. This then allows the file to be stored and retrieved from the server by other users in the same organization. An attacker with minimal privileges in the application can build their own App and upload a malicious file containing an XSS payload, by uploading an arbitrary file and modifying the MIME type in a subsequent HTTP request.
There is a persistent XSS vulnerability in the file-upload functionality for uploading icons when attempting to create new Apps. Users are advised to upgrade.Īn issue was discovered in UiPath App Studio 21.4.4. There are no known workarounds to this issue. As a result Envoy will trust upstream certificates that should not be trusted.
This is particularly bad when combined with the issue described in pull request #630, in that it allows a Web PKI CA that is intended only for use with S/MIME, and thus exempted from audit or supervision, to issue TLS certificates that will be accepted by Envoy. id-kp-emailProtection), either as a leaf certificate or as a CA in the chain, and it will be accepted for TLS. This means that a peer may present an e-mail certificate (e.g. In affected versions Envoy does not restrict the set of certificates it accepts from the peer, either as a TLS client or a TLS server, to only those certificates that contain the necessary extendedKeyUsage (id-kp-serverAuth and id-kp-clientAuth, respectively). Then an attacker can upload a malicious file, intercept the request and change the extension to '.phar' in order to run commands on the server.Įnvoy is an open source edge and service proxy, designed for cloud-native applications. Zenario CMS 9.2 allows an authenticated admin user to bypass the file upload restriction by creating a new 'File/MIME Types' using the '.phar' extension.
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