CVE-2023-40834
CVSS v3
9.8
CRITICAL
EPSS Score
1.3 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical details
- Published
- 2023-09-12
Frequently asked questions
What is 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.
Is CVE-2023-40834 actively exploited?
Active exploitation of CVE-2023-40834 has not been confirmed. Its EPSS score was 1.3% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2023-40834?
CVE-2023-40834 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2023-40834 affecting your environment?
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