What is CVE-2026-9519?

CVE-2026-9519 is a medium-severity vulnerability in Stonith404 Pingvin-share, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-05-26.

How severe is CVE-2026-9519?

Medium severity. CVSS v3 base score is 4.3 out of 10.

RCE in Stonith404 Pingvin-share

CVE-2026-9519

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 argum…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (10.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

Stonith404 Pingvin-share — versions 1.0, 1.1, 1.2

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2026-9519?: CVE-2026-9519 is a medium-severity vulnerability in Stonith404 Pingvin-share, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-05-26.
How severe is CVE-2026-9519?: Medium severity. CVSS v3 base score is 4.3 out of 10.