XSS in Django Slippers
CVE-2026-34231
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (24.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Django Slippers
- Mixxorz Slippers — versions < 0.6.3
Weakness classification (CWE)
References
- github.com/mixxorz/slippers/security/advisories/GHSA-w7rv-gfp4-j9j3 (Exploit, Vendor Advisory)
- github.com/mixxorz/slippers/commit/16cc4ef4fa8ad2f7aee30798f16c3e7b653423b2 (Patch)
- github.com/mixxorz/slippers/releases/tag/0.6.3 (Release Notes)
Frequently asked questions
- What is CVE-2026-34231?
- CVE-2026-34231 is a medium-severity vulnerability in Django Slippers, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-03-31.
- How severe is CVE-2026-34231?
- Medium severity. CVSS v3 base score is 6.1 out of 10.