1137282 matches found
Cross-site Scripting (XSS)
Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the /-/api/sanitizeipynb endpoint, which fails to properly restrict data URI schemes in Jupyter Notebook sanitization. An attacker can execute arbitrary JavaScript in the context of another user by submittin...
CVE-2026-54067
SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, CSS snippet body containing tag when renderSnippet interpolates it via insertAdjacentHTML. A payload like runs arbitrary JavaScript in the renderer. On Electron desktop builds the renderer runs with nodeIntegration:tru...
CVE-2026-52816 Gogs: Unauthenticated Jupyter Notebook (ipynb) Sanitizer allows arbitrary data: URIs leading to XSS
Gogs is an open source self-hosted Git service. Prior to 0.14.3, the Jupyter Notebook ipynb sanitizer endpoint at POST /-/api/sanitizeipynb allows arbitrary data: URIs without proper restrictions, potentially leading to Cross-Site Scripting XSS. The endpoint uses bluemonday.UGCPolicy with...
CVE-2026-52816
Gogs is an open source self-hosted Git service. Prior to 0.14.3, the Jupyter Notebook ipynb sanitizer endpoint at POST /-/api/sanitizeipynb allows arbitrary data: URIs without proper restrictions, potentially leading to Cross-Site Scripting XSS. The endpoint uses bluemonday.UGCPolicy with...
CVE-2026-52816
Gogs exposes an unauthenticated REST endpoint POST /-/api/sanitize_ipynb that uses bluemonday.UGCPolicy with AllowURLSchemes("data"), allowing all data: URIs (including data:text/html). This enables a registered user to craft payloads that survive sanitization and execute XSS when rendered in oth...
EUVD-2026-39076
Gogs is an open source self-hosted Git service. Prior to 0.14.3, the Jupyter Notebook ipynb sanitizer endpoint at POST /-/api/sanitizeipynb allows arbitrary data: URIs without proper restrictions, potentially leading to Cross-Site Scripting XSS. The endpoint uses bluemonday.UGCPolicy with...
CVE-2026-52816 Gogs: Unauthenticated Jupyter Notebook (ipynb) Sanitizer allows arbitrary data: URIs leading to XSS
Gogs is an open source self-hosted Git service. Prior to 0.14.3, the Jupyter Notebook ipynb sanitizer endpoint at POST /-/api/sanitizeipynb allows arbitrary data: URIs without proper restrictions, potentially leading to Cross-Site Scripting XSS. The endpoint uses bluemonday.UGCPolicy with...
CVE-2026-52807 Gogs: DOM-based XSS via Milestone Name on New Issue Page
Gogs is an open source self-hosted Git service. Prior to 0.14.3, in newform.tmpl, milestone names are rendered with Go's default auto-escaping .Name, which converts to etc. This prevents direct HTML injection. However, when the browser renders the DOM, the text content of the element contains the...
CVE-2026-52807
Gogs is an open source self-hosted Git service. Prior to 0.14.3, in newform.tmpl, milestone names are rendered with Go's default auto-escaping .Name, which converts to etc. This prevents direct HTML injection. However, when the browser renders the DOM, the text content of the element contains the...
EUVD-2026-39066
Gogs is an open source self-hosted Git service. Prior to 0.14.3, although .ipynb previews are sanitized on the server side via /-/api/sanitizeipynb, the inserted content is re-rendered on the client side without sanitization using marked on elements with the .nb-markdown-cell class. During this...
CVE-2026-52798
Gogs is an open source self-hosted Git service. Prior to 0.14.3, although .ipynb previews are sanitized on the server side via /-/api/sanitizeipynb, the inserted content is re-rendered on the client side without sanitization using marked on elements with the .nb-markdown-cell class. During this...
CVE-2026-52798
Gogs (self-hosted Git service) is affected by CVE-2026-52798: prior to 0.14.3, .ipynb previews are sanitized server-side, but the client-side re-rendering with marked() on .nb-markdown-cell can regenerate javascript: links, enabling Stored XSS when a victim clicks a crafted link in an attacker-su...
CVE-2026-52798 Gogs: Stored XSS in `.ipynb` Preview
Gogs is an open source self-hosted Git service. Prior to 0.14.3, although .ipynb previews are sanitized on the server side via /-/api/sanitizeipynb, the inserted content is re-rendered on the client side without sanitization using marked on elements with the .nb-markdown-cell class. During this...
CVE-2026-52798 Gogs: Stored XSS in `.ipynb` Preview
Gogs is an open source self-hosted Git service. Prior to 0.14.3, although .ipynb previews are sanitized on the server side via /-/api/sanitizeipynb, the inserted content is re-rendered on the client side without sanitization using marked on elements with the .nb-markdown-cell class. During this...
CVE-2026-52798 Gogs: Stored XSS in `.ipynb` Preview
Gogs is an open source self-hosted Git service. Prior to 0.14.3, although .ipynb previews are sanitized on the server side via /-/api/sanitizeipynb, the inserted content is re-rendered on the client side without sanitization using marked on elements with the .nb-markdown-cell class. During this...
CVE-2026-53948
Ghost is a Node.js content management system. From 6.19.4 until 6.21.1, insufficient validation of the client-supplied Content-Type on Ghost's Admin API file upload endpoint allowed uploaded files to be served from the site with an attacker-chosen content type on S3/GCS storage backends. On...
CVE-2026-49220
Jellyfin is an open source self hosted media server. Prior to 10.11.9, a potential XSS attack exists in Jellyfin which can allow a non-privileged user to execute arbitrary Javascript in the context of a logged-in Administrative user, resulting in numerous potential issues. The Client header durin...
DRUPAL-CONTRIB-2026-054
The module and certain submodules AI Automators, AI Translate, AI API Explorer, AI Content Suggestions provide the ability to use an LLM to generate HTML or Markdown and preview it in a browser. Under certain circumstances, rendering of this HTML can lead to Cross Site Scripting, or exposing secr...