CVE-2026-90491: sanjevirau gsubs Electron index.js showQuerySuccessPage code injection

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-13 · updated 2026-09-15
Weakness: CWE-74

Description

A weakness has been identified in sanjevirau gsubs up to 1.0.3. Impacted is the function showQuerySuccessPage of the file renderer/index.js of the component Electron. Executing a manipulation of the argument filename can lead to code injection. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

sanjevirau gsubs: 1.0.0, 1.0.1, 1.0.2, 1.0.3

References

https://github.com/LeoWSY-hashblue/cve-electron-2/blob/master/gsubs/cve.md
https://github.com/LeoWSY-hashblue/cve-electron-2/tree/master/gsubs/poc
https://vuldb.com/cve/CVE-2026-90491
https://vuldb.com/submit/891691
https://vuldb.com/vuln/403079
https://vuldb.com/vuln/403079/cti

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