CVE-2026-53537

Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.30, parseoptionsheader parsed Content-Disposition and Content-Type headers with email.message.Message, which transparently applies RFC 2231/5987 decoding. The extended parameter syntax filename=charset'lang'value, name=...,...

CVE-2026-42845 Grav: Anonymous Page Content Overwrite via Form File Upload filename Override

The form plugin for Grav adds the ability to create and use forms. Prior to 9.1.0 , there is an unauthenticated page-content overwrite via file upload GHSA-w4rc-p66m-x6qq. Public form uploads now strip path components from the POST-supplied filename and hard-block page-content extensions md, yaml...

Grav Form Plugin has an Anonymous Page Content Overwrite via Form File Upload filename Override

Summary Tested on Form 9.0.3 released on April, 28th The Form plugin's file upload handler at user/plugins/form/classes/Form.php:583 accepts a POST-supplied filename parameter $filename = $post'filename' ?? $upload'file''name' that overrides the original uploaded filename. The override passes...

GHSA-W4RC-P66M-X6QQ Grav Form Plugin has an Anonymous Page Content Overwrite via Form File Upload filename Override

Summary Tested on Form 9.0.3 released on April, 28th The Form plugin's file upload handler at user/plugins/form/classes/Form.php:583 accepts a POST-supplied filename parameter $filename = $post'filename' ?? $upload'file''name' that overrides the original uploaded filename. The override passes...

PT-2026-38283

Name of the Vulnerable Software and Affected Versions Grav form plugin versions prior to 9.1.0 Description An unauthenticated page-content overwrite exists via file upload. The file upload handler in user/plugins/form/classes/Form.php uses a filename parameter that can be controlled via POST...