CVE-2026-9519: STONITH404 Pingvin-Share

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

A security flaw has been discovered in stonith404 pingvin-share up to 1.13.0. This affects the function getServerSideProps of the file frontend/src/pages/auth/signIn.tsx of the component Sign-in Auto-Redirect. The manipulation of the argument redirect results in cross site scripting. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• STONITH404 Pingvin-Share: version 1.0 only; version 1.1 only; version 1.2 only; version 1.3 only; version 1.4 only; version 1.5 only; …

Published 2026-05-26. Last modified 2026-07-23.