CVE-2026-1363CWE-603

JNC|IAQS and I6 - Client-Side Enforcement of Server-Side Security

Critical · published January 23, 2026

CVSS v4.0
9.3
EPSS
1%
Percentile
47.2
In the wild
Unconfirmed
What it is

🚨 A sneaky loophole in JNC's IAQS and I6 allows attackers to waltz in and claim admin rights without breaking a sweat! 🔥 Think of it like a hotel with a receptionist who trusts every guest's ID without checking. An attacker can stroll up, present a fake ID, and suddenly they're in the penthouse suite! This vulnerability is absolutely devastating! An attacker can gain full administrative control, which means they could alter settings, steal sensitive information, or even bring your entire system to its knees. The potential for chaos is immense, and with a CVSS score of 9.3, this isn't something to take lightly!

Put simply

Think of it like a hotel with a receptionist who trusts every guest's ID without checking. An attacker can stroll up, present a fake ID, and suddenly they're in the penthouse suite! The Client-Side Enforcement of Server-Side Security flaw enables unauthenticated attackers to manipulate the web front-end, bypassing crucial security checks that should be enforced on the server side.

What to do

This vulnerability is absolutely devastating! An attacker can gain full administrative control, which means they could alter settings, steal sensitive information, or even bring your entire system to its knees. The potential for chaos is immense, and with a CVSS score of 9.3, this isn't something to take lightly! Immediate action is needed! Update to the latest version of IAQS and I6 from JNC as soon as possible. Additionally, implement robust server-side validation checks to ensure that only authorized users can access sensitive functions. Don't wait – protect your system now! You've got this! With these steps, you'll lock down your system tighter than a drum! 🛡️

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00585 · 47.2th percentile
Weakness
CWE-603 · Use of Client-Side Authentication
Published
2026-01-23T08:37Z
EPSS history
Timeline
  • 23 JAN 08:37Z
    JNC|IAQS and I6 - Client-Side Enforcement of Server-Side Security
    cvelistv5