What is CVE-2023-40834?

CVE-2023-40834 is a critical-severity vulnerability in Opencart, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 9.8/10. Published 2023-09-12.

How severe is CVE-2023-40834?

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

Is CVE-2023-40834 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Opencart

CVE-2023-40834

OpenCart CMS v4.0.2.2 was discovered to lack a protective mechanism on its login page against excessive login attempts, allowing unauthenticated attackers to gain access to the application via a brute force attack to the password parameter.

EPSS: 0.011 (62.0th percentile) — read the EPSS interpretation.

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.

Affected products

Opencart — versions 4.0.2.2
N/a — versions n/a

Weakness classification (CWE)

CWE-307 — Improper Restriction of Excessive Authentication Attempts

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

cve@mitre.org (Product)
cve@mitre.org (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2023-40834?: CVE-2023-40834 is a critical-severity vulnerability in Opencart, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 9.8/10. Published 2023-09-12.
How severe is CVE-2023-40834?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-40834 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.