Quick answers
- Is CVE-2026-15540 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-15540 being exploited in the wild.
- How severe is CVE-2026-15540?
- Medium severity, with a CVSS score of 4.3, published 13 July 2026.
- Which products and versions are affected?
- SourceCodester Online Book Store System 1.0.
- Is there a fix for CVE-2026-15540?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-15540 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-15540?
- Check whether you run SourceCodester Online Book Store System at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A Local File Inclusion (LFI) vulnerability exists in SourceCodester Online Book Store System 1.0 within the Administrative Interface. The flaw is located in the /admin/index.php file, where the 'page' GET parameter is used in PHP include or require statements without sufficient validation. A remote attacker with authenticated access to the administrative panel can manipulate this parameter to traverse directories and include arbitrary local files. This can lead to the disclosure of sensitive information, such as system configuration files or application source code. An exploit for this vulnerability is publicly available.
Affected products
- SourceCodester Online Book Store System 1.0
Timeline
- 2026-07-13: advisory: NVD publication date