Security Advisory

CVE-2026-45348

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-05-28 17:12:20

Last updated 2026-05-28 18:51:28

Assigner GitHub_M

CVSS score 8.7

State PUBLISHED

Description

pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, the packages.js template at src/pyload/webui/app/themes/modern/templates/js/packages.js:172 interpolates a stored link URL into a template literal inside single-quoted HTML and then writes the result to the DOM via $(div).html(html). No escaping runs between the API value and innerHTML. An attacker (Alice) who can submit a package link puts a single quote plus event handler into the URL, breaks out of the attribute, and executes JavaScript in every operator's browser that opens the downloads view. The theme does not set a Content Security Policy that restricts inline script or event handlers. This vulnerability is fixed in 0.5.0b3.dev100.

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