Arbitrary file upload in Sourcecodester Online Book Store System
CVE-2026-15539
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (31.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 31.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Sourcecodester Online Book Store System — versions 1.0
Weakness classification (CWE)
References
- vuldb.com/vuln/377889 (vdb-entry)
- vuldb.com/vuln/377889/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-15539 (third-party-advisory)
- vuldb.com/submit/855046 (third-party-advisory)
- medium.com/@hemantrajbhati5555/critical-authenticated-remote-code-execution-rce… (exploit, broken-link)
- www.sourcecodester.com/ (product)
Frequently asked questions
- What is CVE-2026-15539?
- CVE-2026-15539 is a medium-severity vulnerability in Sourcecodester Online Book Store System, classified under Improper Access Control. CVSS score: 4.7/10. Published 2026-07-13.
- How severe is CVE-2026-15539?
- Medium severity. CVSS v3 base score is 4.7 out of 10.