CVE-2026-26213 HIGH

CVE-2026-26213: thingino-firmware api.cgi Unauthenticated Command Injection in Captive Portal

Vendor Themactep
Product thingino-firmware
Weakness CWE-78
Published March 26, 2026
Last update March 26, 2026

CVSS base score

8.7/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

thingino-firmware versions up to the firmware-2026-03-16 release contains an unauthenticated os command injection vulnerability in the WiFi captive portal CGI script that allows remote attackers to execute arbitrary commands as root by injecting malicious code through unsanitized HTTP parameter names. Attackers can exploit the eval function in parse_query() and parse_post() functions to achieve remote code execution and perform privileged configuration changes including root password reset and SSH authorized_keys modification, resulting in full persistent device compromise.

Key dates

02Disclosure timeline

March 26, 2026 CVE published
March 26, 2026 Record updated