Is CVE-2026-15539 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-15539?

CVE-2026-15539 has a CVSS v3 severity of MEDIUM (4.7).

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CVE-2026-15539

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.