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Medium · 6.1 CVE-2026-34231 EUVD-2026-17492GHSA-w7rv-gfp4-j9j3PYSEC-2026-2279

Slippers: Cross-Site Scripting (XSS) in `attrs` Template Tag

Published Mar 31, 2026 · Updated Mar 31, 2026 · Assigned by GitHub_M

Description

Slippers is a UI component framework for Django. Prior to version 0.6.3, a Cross-Site Scripting (XSS) vulnerability exists in the {% attrs %} template tag of the slippers Django package. When a context variable containing untrusted data is passed to {% attrs %}, the value is interpolated into an HTML attribute string without escaping, allowing an attacker to break out of the attribute context and inject arbitrary HTML or JavaScript into the rendered page. This issue has been patched in version 0.6.3.

Affected products

VendorProductAffectedFixed
mixxorz slippers < 0.6.3 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI slippers < 0.6.3 0.6.3 GHSA-w7rv-gfp4-j9j3

References