sanjevirau gsubs up to 1.0.3 Electron renderer/index.js showQuerySuccessPage filename code injection

Summaryinfo

A vulnerability was found in sanjevirau gsubs up to 1.0.3. It has been classified as critical. The affected element is the function showQuerySuccessPage of the file renderer/index.js of the component Electron. The manipulation of the argument filename leads to code injection. This vulnerability is traded as CVE-2026-90491. 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 was found in sanjevirau gsubs up to 1.0.3 and classified as critical. This issue affects the function showQuerySuccessPage of the file renderer/index.js of the component Electron. The manipulation of the argument filename with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-90491. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

The exploit is available at 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.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• sanjevirau

Name

• gsubs

Version

• 1.0.0
• 1.0.1
• 1.0.2
• 1.0.3

CPE 2.3info

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CPE 2.2info

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Threat Intelligenceinfo

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Submitinfo

Accepted

• Submit #891691: sanjevirau gsubs 1.0.3 Code Injection (by NeoWSY)

Be aware that VulDB is the high quality source for vulnerability data.

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