CVE-2026-54027 LibreChat: Image Upload Route Bypasses Agent Permission Check — Incomplete Fix for File Upload Authorization

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the POST /api/files/images endpoint allows any authenticated user to upload files into any agent's toolresources e.g., context, executecode without verifying ownership or EDIT permission on the target...

EUVD-2026-39462

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the POST /api/files/images endpoint allows any authenticated user to upload files into any agent's toolresources e.g., context, executecode without verifying ownership or EDIT permission on the target...

CVE-2026-54027 LibreChat: Image Upload Route Bypasses Agent Permission Check — Incomplete Fix for File Upload Authorization

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the POST /api/files/images endpoint allows any authenticated user to upload files into any agent's toolresources e.g., context, executecode without verifying ownership or EDIT permission on the target...

CVE-2026-48945

The K2 article gallery upload path accepts a zip/tar archive, extracts it under /media/k2/galleries//, and only renames image files gif/jpg/jpeg/png/webp to safe names — non-image files including .php are extracted as-is and remain executable via direct HTTP access...

CVE-2026-48945

The K2 extension for Joomla (versions < 2.26) is vulnerable to Privileged RCE due to an unrestricted file upload path in the article gallery. The system accepts zip or tar archives and extracts them to /media/k2/galleries//. While it renames specific image formats (gif, jpg, jpeg, png, webp), ...

EUVD-2026-39447

The K2 article gallery upload path accepts a zip/tar archive, extracts it under /media/k2/galleries//, and only renames image files gif/jpg/jpeg/png/webp to safe names — non-image files including .php are extracted as-is and remain executable via direct HTTP access...

EUVD-2026-39439

K2 ≤ 2.26 renders the k2users.image column directly into HTML src attributes via two distinct templates, in both cases without HTML escaping...

CVE-2026-48942

The K2 extension for Joomla (versions ≤ 2.26) is vulnerable to Stored-XSS because it renders the #__k2_users.image column directly into HTML src attributes across two distinct templates. The root cause is the lack of HTML escaping during this rendering process. While the CVSS score reflects a Med...

CVE-2026-48942 Joomla Extension - getk2.org - Stored-XSS in K2 extension for Joomla < 2.26

K2 ≤ 2.26 renders the k2users.image column directly into HTML src attributes via two distinct templates, in both cases without HTML escaping...

CVE-2026-48942

K2 ≤ 2.26 renders the k2users.image column directly into HTML src attributes via two distinct templates, in both cases without HTML escaping...

CVE-2026-48942

K2 ≤ 2.26 renders the k2users.image column directly into HTML src attributes via two distinct templates, in both cases without HTML escaping...

CVE-2026-48942 Joomla Extension - getk2.org - Stored-XSS in K2 extension for Joomla < 2.26

K2 ≤ 2.26 renders the k2users.image column directly into HTML src attributes via two distinct templates, in both cases without HTML escaping...

CVE-2026-48943 Joomla Extension - getk2.org - Authenticated user property mass-assignment in K2 extension for Joomla < 2.26

K2 ≤ 2.24 contains a mass-assignment defect in the K2 system user plugin plguserk2. A Registered Joomla user, by including the field K2UserForm=1 in a standard comusers profile.save POST, can write arbitrary values into the notes, image, and plugins columns of their own row in the k2users table —...

CVE-2026-48943

The K2 extension (version ≤ 2.24 ) for Joomla is vulnerable to a mass-assignment defect within the plg_user_k2 system user plugin. A Registered Joomla user can exploit this by including the K2UserForm=1 field in a standard com_users profile.save POST request. This action allows the user to write ...

CVE-2026-48943

K2 ≤ 2.24 contains a mass-assignment defect in the K2 system user plugin plguserk2. A Registered Joomla user, by including the field K2UserForm=1 in a standard comusers profile.save POST, can write arbitrary values into the notes, image, and plugins columns of their own row in the k2users table —...

EUVD-2026-39438

K2 ≤ 2.24 contains a mass-assignment defect in the K2 system user plugin plguserk2. A Registered Joomla user, by including the field K2UserForm=1 in a standard comusers profile.save POST, can write arbitrary values into the notes, image, and plugins columns of their own row in the k2users table —...

CVE-2026-48943 Joomla Extension - getk2.org - Authenticated user property mass-assignment in K2 extension for Joomla < 2.26

K2 ≤ 2.24 contains a mass-assignment defect in the K2 system user plugin plguserk2. A Registered Joomla user, by including the field K2UserForm=1 in a standard comusers profile.save POST, can write arbitrary values into the notes, image, and plugins columns of their own row in the k2users table —...

Cross-site Scripting (XSS)

Overview pretix is a Reinventing presales, one ticket at a time Affected versions of this package are vulnerable to Cross-site Scripting XSS via the PDF rendering process. An attacker can cause the server to make arbitrary HTTP requests and potentially leak internal network information by injecti...

CVE-2026-57535

Content injected to PDF rendering contexts could, in many places, include HTML content including tags. If the src attribute of these images pointed to an URL, the PDF rendering engine would download the image from that place and display it, thereby leaking information about the rendering server a...

CVE-2026-57535

Content injected to PDF rendering contexts could, in many places, include HTML content including tags. If the src attribute of these images pointed to an URL, the PDF rendering engine would download the image from that place and display it, thereby leaking information about the rendering server a...