CVE-2025-48952 NetAlertX has Password Bypass Vulnerability due to Loose Comparison in PHP
Attackers can bypass authentication in NetAlertX using SHA-256 magic hashes due to loose PHP comparison, gaining unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-48952?
CVE-2025-48952 is a critical authentication bypass vulnerability in jokob-sk NetAlertX, published on 4 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
NetAlertX is a network, presence scanner, and alert framework. Prior to version 25.6.7, a vulnerability in the authentication logic allows users to bypass password verification using SHA-256 magic hashes, due to loose comparison in PHP. In vulnerable versions of the application, a password comparison is performed using the `==` operator at line 40 in front/index.php. This introduces a security issue where specially crafted "magic hash" values that evaluate to true in a loose comparison can bypass authentication. Because of the use of `==` instead of the strict `===`, different strings that begin with 0e and are followed by only digits can be interpreted as scientific notation (i.e., zero) and treated as equal. This issue falls under the Login Bypass vulnerability class. Users with certain "weird" passwords that produce magic hashes are particularly affected. Services relying on this logic are at risk of unauthorized access. Version 25.6.7 fixes the vulnerability.
Weakness: CWE-697
Which versions are affected by CVE-2025-48952?
It affects 1 product.
Products include Netalertx Netalertx.
How do I fix CVE-2025-48952?
No fix has been published for CVE-2025-48952 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-48952 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-48952 exists.
Other vulnerabilities in jokob-sk NetAlertX
Sources
Also known as GHSA-4p4p-vq2v-9489.