CVE-2023-43739

Name: CVE-2023-43739
Creator: NVD / NIST
Published: 2023-09-28T22:15:10.357+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.80%

Last modified Jun 17, 2026

CVE-2023-43739 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The 'bookisbn' parameter of the cart.php resource does not validate the characters received and they are sent unfiltered to the database. . EPSS estimates a 0.80% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.80%

52.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Online Book Store Project Project	Online Book Store Project	1.0

References

https://fluidattacks.com/advisories/filthExploit, Third Party Advisory
https://projectworlds.in/Product
https://fluidattacks.com/advisories/filthExploit, Third Party Advisory
https://projectworlds.in/Product

Timeline

Published: Sep 28, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is 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.

How severe is CVE-2023-43739?

CVE-2023-43739 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.80% probability of exploitation in the next 30 days.

How do I fix CVE-2023-43739?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-43739?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST