Vulnerability · Published Jun 19, 2025 · Assigned by GitHub_M

CVE-2025-50183OpenList (frontend) allows XSS Attacks in the built-in Markdown Viewer

Medium 6.5

In plain English

A medium-severity cross-site scripting in OpenList from OpenListTeam. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.3%top 75.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

OpenList Frontend is a UI component for OpenList. Prior to version 4.0.0-rc.4, a vulnerability exists in the file preview/browsing feature of the application, where files with a .py extension that contain JavaScript code wrapped in <script> tags may be interpreted and executed as HTML in certain modes. This leads to a stored XSS vulnerability. This issue has been patched in version 4.0.0-rc.4.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
npm@openlist-frontend/openlist-frontend4.0.0-rc.4GHSA-2hw3-h8qx-hqqp

Affected products (as reported)

VendorProductVersions
OpenListTeam OpenList < 4.0.0-rc.4

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References