CVE-2021-43155

Name: CVE-2021-43155
Creator: NVD / NIST
Published: 2021-12-22T18:15:07.557+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.09%

Last modified Jun 17, 2026

CVE-2021-43155 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Projectsworlds Online Book Store PHP v1.0 is vulnerable to SQL injection via the "bookisbn" parameter in cart.php.. EPSS estimates a 1.09% chance of exploitation in the next 30 days.

Description

Projectsworlds Online Book Store PHP v1.0 is vulnerable to SQL injection via the "bookisbn" parameter in cart.php.

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

1.09%

61.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Projectworlds	Online Book Store Project In Php	1.0

References

https://github.com/projectworldsofficial/online-book-store-project-in-php/issues/18Exploit, Issue Tracking, Third Party Advisory
https://github.com/projectworldsofficial/online-book-store-project-in-php/issues/18Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Dec 22, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-43155?

Projectsworlds Online Book Store PHP v1.0 is vulnerable to SQL injection via the "bookisbn" parameter in cart.php.

How severe is CVE-2021-43155?

CVE-2021-43155 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.09% probability of exploitation in the next 30 days.

How do I fix CVE-2021-43155?

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-2021-43155?

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

Scan your code now

Source: NVD / NIST