stonith404 pingvin-share up to 1.13.0 Sign-in Auto-Redirect signIn.tsx getServerSideProps redirect cross site scripting

Summaryinfo

A vulnerability classified as problematic has been found in stonith404 pingvin-share up to 1.13.0. This impacts the function getServerSideProps of the file frontend/src/pages/auth/signIn.tsx of the component Sign-in Auto-Redirect. This manipulation of the argument redirect causes cross site scripting. The identification of this vulnerability is CVE-2026-9519. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability has been found in stonith404 pingvin-share up to 1.13.0 and classified as problematic. Affected by this vulnerability is 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 with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity.

It is possible to read the advisory at gist.github.com. This vulnerability is known as CVE-2026-9519. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

It is possible to download the exploit at gist.github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-31778). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• stonith404

Name

• pingvin-share

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13.0

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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Submitinfo

Accepted

• Submit #814364: stonith404 pingvin-share 1.13.0 DOM-Based XSS, Open Redirect (by trebledj)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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