CVE-2026-15540

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.42% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 34.8% of scored records. A rank, not a probability.

NVD base score

2.1 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-07-13.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-07-13 06:30Z1 MO AGO

Last updated

2026-07-13 18:39Z1 MO AGO

Reserved

2026-07-12

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

Weaknesses

• CWE-73External Control of File Name or PathBase
• CWE-98Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')Variant

Data version

5.2

Document digest

fd2634c864b2eb2508d8349ca464fbaa6c6a8b20e55d1dcd48b9594acc3d8352

• vuldb.comVDB-377890 | SourceCodester Online Book Store System Administrative index.php php file inclusionhttps://vuldb.com/vuln/377890vdb-entrytechnical-description
• vuldb.comVDB-377890 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/377890/ctisignaturepermissions-required
• vuldb.comCVE-2026-15540 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-15540third-party-advisory
• vuldb.comSubmit #855048 | SourceCodester Online Book Store System 1.0 Local File Inclusionhttps://vuldb.com/submit/855048third-party-advisory
• medium.comhttps://medium.com/@hemantrajbhati5555/local-file-inclusion-lfi-via-page-parameter-leading-to-source-code-disclosure-ce722de0c407broken-linkexploit
• www.sourcecodester.comhttps://www.sourcecodester.com/product