by Kastro
Paper/Archive/CVE-2026-71231

CVE-2026-71231

thebradleysanders IOTSmartHome — IOTSmartHome - Unauthenticated SQL Injection via lastLogin Cookie

EPSS 0.7%CVSS 9.8
critical.is priorityof 100
40
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 51.8.518 × 2010.4No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

IOTSmartHome's gui/login.php checkCookie function builds an authentication query as SELECT * FROM users WHERE ID='<decoded lastLogin cookie>' after base64-decoding the client-supplied lastLogin cookie via safe_decode, which performs URL-safe base64 decoding with no sanitization of the decoded value before it is concatenated into the SQL string.

Affected

ProductAffectedFixed inSource
IOTSmartHomeall versions–CNA

Scores by source

TuranSec (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

writeupgithub.com/thebradleysanders/IOTSmartHome