What is CVE-2023-43739?

CVE-2023-43739 is a critical-severity vulnerability in Online Book Store Project, classified under SQL Injection. CVSS score: 9.8/10. Published 2023-09-28.

How severe is CVE-2023-43739?

Critical severity. CVSS v3 base score is 9.8 out of 10.

SQL Injection in Online Book Store Project

CVE-2023-43739

The 'bookisbn' parameter of the cart.php resource does not validate the characters received and they are sent unfiltered to the database.

Vulnerability class: SQL Injection

Published 2023-09-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (60.8th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.010 · change: +0.002

Affected products

Online Book Store Project — versions 1.0
Online Book Store Project — versions 1.0

Weakness classification (CWE)

CWE-89 — SQL Injection

References

fluidattacks.com/advisories/filth (Exploit, Third Party Advisory)
projectworlds.in/ (Product)

Frequently asked questions

What is CVE-2023-43739?: CVE-2023-43739 is a critical-severity vulnerability in Online Book Store Project, classified under SQL Injection. CVSS score: 9.8/10. Published 2023-09-28.
How severe is CVE-2023-43739?: Critical severity. CVSS v3 base score is 9.8 out of 10.