Description
An attacker may perform unauthenticated read and write operations on sensitive filesystem areas via the AppEngine Fileaccess over HTTP due to improper access restrictions. A critical filesystem directory was unintentionally exposed through the HTTP-based file access feature, allowing access without authentication. This includes device parameter files, enabling an attacker to read and modify application settings, including customer-defined passwords. Additionally, exposure of the custom application directory may allow execution of arbitrary Lua code within the sandboxed AppEngine environment.
References6
- www.cisa.gov/resources-tools/resources/ics-recommended-practices
- www.first.org/cvss/calculator/3.1
- www.sick.com/.well-known/csaf/white/2026/sca-2026-0010.json
- www.sick.com/.well-known/csaf/white/2026/sca-2026-0010.pdf
- www.sick.com/media/docs/9/19/719/special_information_sick_opera…
- www.sick.com/psirt
Metrics
- CVSS 3.1
-
9.4
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L - EPSS — exploit probability
- 1% percentile: 59 · as of 13 November 2026
- CWE
- CWE-552
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