CVE-2026-54027

Vulnerability (CVE-2026-54027): LibreChat prior to 0.8.4-rc1 allows authenticated users to upload files via POST /api/files/images into any agent’s tool_resources (e.g., context, execute_code) without ownership/EDIT checks. A permission check was added to POST /api/files, but the image upload rou...

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 CVE describes a vulnerability in the K2 Joomla extension (getk2.com) where the article gallery upload path accepts a zip/tar archive and extracts it to /media/k2/galleries//. The extractor renames image files (gif/jpg/jpeg/png/webp) to safe names, but non-image files (including .php) are extr...

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...

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...

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

Affected software: K2 extension for Joomla (getk2.com), version constraint listed as K2 ≤ 2.26. Vulnerability: two templates render the database column __#k2_users.image directly into HTML src attributes without HTML escaping, revealing a stored-XSS risk. Root cause: lack of escaping when injecti...

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-2026-48942

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

Summary: CVE-2026-48943 affects K2 ≤ 2.24, specifically the K2 system user plugin plg_user_k2. A mass‑assignment defect allows a registered Joomla user to set the field K2UserForm=1 in a normal com_users profile.save POST and write arbitrary values into the notes, image, and plugins columns of th...

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 —...

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 —...

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 —...

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...

CVE-2026-57535

CVE-2026-57535 describes a vulnerability in PDF rendering contexts where HTML content (including tags) can be injected. If an tag src points to a URL, the rendering engine may fetch the image, potentially leaking information about the rendering server and enabling an SSRF-like vector in the loc...