CVE-2026-5553 itsourcecode Online Cellphone System Parameter available.php sql injection

Medium 5.3 Published Updated

Remote attackers can exploit SQL injection in the Name parameter of available.php to read or modify database contents.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-5553?

CVE-2026-5553 is a medium-severity SQL injection vulnerability in itsourcecode Online Cellphone System, published on 5 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was identified in itsourcecode Online Cellphone System 1.0. Affected by this vulnerability is an unknown functionality of the file /cp/available.php of the component Parameter Handler. Such manipulation of the argument Name leads to sql injection. The attack can be launched remotely. The exploit is publicly available and might be used.

Weakness: CWE-89, CWE-74

Which versions are affected by CVE-2026-5553?

How do I fix CVE-2026-5553?

No fix has been published for CVE-2026-5553 yet. Limit exposure of the affected software until one is available.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2026-5553 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5553 exists.

Sources

Also known as GHSA-h4xv-q4qh-g7q3.

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