CVE Catalog

CVE-2026-26927

MediumCVSS 5.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.27%

18th percentile - higher than 18% of all known CVEs

Summary

Szafir SDK Web is a browser plug-in that can run the SzafirHost application, which downloads necessary files when launched. It is possible to change the URL (HTTP Origin) of the application call location — an unauthenticated attacker can craft a website that launches SzafirHost with arbitrary arguments via the addon. No validation checks whether the address in the 'document_base_url' parameter relates to the actual calling web application; the address is shown in the confirmation prompt, and once confirmed the application runs in the context of the attacker's site and may download additional files and libraries. If the victim previously accepted execution with the 'remember' option, the prompt is not shown and the application is launched without interaction. The issue was fixed in version 0.0.17.4.

Risk Assessment

An attacker can cause the application to launch with arbitrary arguments and download malicious files from their server, risking code execution or malware installation. The lack of interaction with remembered consent further increases the risk.

Recommendation

Update Szafir SDK Web to version 0.0.17.4 or later. Additionally, clear remembered application launch consents and verify whether the plug-in is necessary in the organization's environment.

Related vulnerabilities

Original NVD description (English source)

Szafir SDK Web is a browser plug-in that can run SzafirHost application which download the necessary files when launched. In Szafir SDK Web it is possible to change the URL (HTTP Origin) of the application call location. An unauthenticated attacker can craft a website that is able to launch SzafirHost application with arbitrary arguments via Szafir SDK Web browser addon. No validation will be performed to check whether the address specified in `document_base_url` parameter is in any way related to the actual address of the calling web application. The URL address specified in `document_base_url` parameter is then shown in the application confirmation prompt. When a victim confirms the execution of the application, it will be called in the context of attacker's website URL and might download additional files and libraries from that website. When victim accepts the application execution for the URL showed in the confirmation prompt with the "remember" option before, the prompt won't be shown and the application will be called in the context of URL provided by the attacker without any interaction. This issue was fixed in version 0.0.17.4.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS