Threat database

CVE-2026-59976 is a path traversal vulnerability in C4illin ConvertX, a self-hosted file conversion service. Versions prior to 0.18.0 use an unsanitized convert_to parameter in the ImageMagick converter, allowing directory traversal sequences to escape the intended output directory. This can enable authenticated users, or unauthenticated users if access is allowed, to write converted files to arbitrary paths, potentially overwriting files or causing denial of service. The issue is fixed in version 0.18.0.

CVE-2026-59977 is a Cross-Site Request Forgery (CSRF) vulnerability in C4illin ConvertX, a self-hosted file conversion service. Versions prior to 0.18.0 have a /delete/{id} endpoint that uses HTTP GET for permanent deletion without CSRF protection. An authenticated user visiting attacker-controlled content can trigger deletion of converted-file history without authorization. This issue is fixed in version 0.18.0.

ConvertX versions up to 0.19.0 have an arbitrary file read vulnerability. Authenticated users can exploit this by uploading a specially crafted reStructuredText document that includes an absolute file path. The vulnerability arises because the Pandoc converter is invoked without the --sandbox flag, allowing the inclusion and reading of arbitrary server files in the conversion output.

ConvertX versions before 0.19.0 contain a critical vulnerability (CVE-2026-105080) where recipe files are not blocked and are passed directly to the Calibre ebook-convert program. This allows inclusion of functionality from untrusted control spheres via executable code in .recipe or .downloaded_recipe files.

ConvertX 0.17.0 contains an arbitrary file read vulnerability in the xelatex converter that allows authenticated users to read files by uploading LaTeX files with input directives. Attackers can upload .tex files containing \\input{path} or \\verbatiminput{path} directives to have the TeX engine read arbitrary files accessible to the server process and include them in downloadable PDF output.

CVE-2026-24741 is a high-severity path traversal vulnerability in C4illin ConvertX versions prior to 0.17.0. The vulnerability exists in the POST /delete endpoint, where the user-controlled filename parameter is used without proper validation to delete files via unlink. Attackers can exploit this by supplying path traversal sequences (e.g. , .. /) to delete arbitrary files outside the intended directory, constrained only by the server process permissions. This can lead to significant integrity and availability impacts on affected systems. The issue is fixed in version 0.

ConvertXis a self-hosted online file converter. In versions prior to 0.16.0, the endpoint `/upload` allows an authenticated user to write arbitrary files on the system, overwriting binaries and allowing code execution. The upload function takes `file.name` directly from user supplied data without doing any sanitization on the name thus allowing for arbitrary file write. This can be used to overwrite system binaries with ones provided from an attacker allowing full code execution. Version 0.16.0 contains a patch for the issue.