CVE-2026-15539 Details
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.
A critical vulnerability has been identified in SourceCodester Online Book Store System version 1.0, specifically within the Book Image Upload feature. The issue resides in an unknown function of the file '/admin/index.php?page=books', where the application fails to properly validate uploaded files. This lack of validation allows authenticated administrators to upload arbitrary files, including malicious PHP scripts, which can be executed on the server. The vulnerability can be exploited remotely, leading to unauthorized execution of commands on the server with the same privileges as the web server process.
To address this vulnerability, restrict file uploads to approved image formats, validate MIME types and file signatures server-side, rename uploaded files with random identifiers, and store uploads outside the web root. Additionally, disable PHP execution in the uploads directory.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 13, 2026CISA-ADP
Assessed Jul 13, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://medium.com/@hemantrajbhati5555/critical-authenticated-remote-code-execution-rce-via-unrestricted-file-upload-5a4a313ea1f1 | [email protected] | ExploitRemedyTechnical Description |
| https://vuldb.com/cve/CVE-2026-15539 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/855046 | [email protected] | Permission Required |
| https://vuldb.com/vuln/377889 | [email protected] | Permission Required |
| https://vuldb.com/vuln/377889/cti | [email protected] | Content Wall |
| https://www.sourcecodester.com/ | [email protected] | Vendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | [email protected] |
| CWE-434 | Unrestricted Upload of File with Dangerous Type | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| SourceCodester Online Book Store System | 1.0 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 13, 2026 | CVE Modified | CISA-ADP |
| Jul 13, 2026 | New CVE Received | [email protected] |