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TI-2026-21204 Aliases CVE-2026-26213GHSA-h56g-w4h5-4239

thingino-firmware api.cgi Unauthenticated Command Injection in Captive Portal

Priority MEDIUM 47CWE-78Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.04667 91st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
themactepthingino-firmwareup to firmware-2026-03-16—No fix listedCNA
  • thingino-firmware Vendorthemactep Affected up to firmware-2026-03-16 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:thingino:thingino_firmware:*:*:*:*:*:*:*:*up to 2026-03-15VulnerableThingino
  • cpe:2.3:o:thingino:thingino_firmware:*:*:*:*:*:*:*:* Versions up to 2026-03-15 Vulnerable ·Thingino

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-26213
  2. 2026-10-03 Alias added: GHSA-h56g-w4h5-4239

References

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences