CVE-2026-15540: File Inclusion (CVSS 4.3)

Description

A vulnerability was detected in SourceCodester Online Book Store System 1.0. The affected element is an unknown function of the file /admin/index.php of the component Administrative Interface. Performing a manipulation of the argument page results in improper control of filename for include/require statement in php program. It is possible to initiate the attack remotely. The exploit is now public and may be used.

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CVSS v3.1 Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS — Exploit Prediction

0.0024

Probability of exploitation

0.15%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-73 CWE-73

CWE-98 CWE-98

References

Other References

https://medium.com/@hemantrajbhati5555/local-file-inclusion-lfi-via-page-parameter-leading-to-source-code-disclosure-ce722de0c407 https://vuldb.com/cve/CVE-2026-15540 https://vuldb.com/submit/855048 https://vuldb.com/vuln/377890 https://vuldb.com/vuln/377890/cti https://www.sourcecodester.com/

Frequently Asked Questions

What is CVE-2026-15540? +

A vulnerability was detected in SourceCodester Online Book Store System 1.0. The affected element is an unknown function of the file /admin/index.php of the component Administrative Interface. Performing a manipulation of the argument page results in improper control of filename for include/require statement in php program. It is possible to initiate the attack remotely. The exploit is now public and may be used. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-15540? +

CVE-2026-15540 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0024, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-15540? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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