CVE-2026-15539 SourceCodester Online Book Store System Book Image Upload Feature index.php books unrestricted upload

Medium 5.1 Published Updated

Remote attackers can upload malicious files via the book image upload feature, potentially leading to code execution.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-15539?

CVE-2026-15539 is a medium-severity vulnerability in SourceCodester Online Book Store System, published on 13 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A security vulnerability has been detected in SourceCodester Online Book Store System 1.0. Impacted is an unknown function of the file /admin/index.php?page=books of the component Book Image Upload Feature. Such manipulation leads to unrestricted upload. The attack may be performed from remote. The exploit has been disclosed publicly and may be used.

Weakness: CWE-434, CWE-284

Which versions are affected by CVE-2026-15539?

How do I fix CVE-2026-15539?

No fix has been published for CVE-2026-15539 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-15539 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15539 exists.

Sources

Also known as GHSA-596x-7q4m-3hjq.

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