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Vulnerability record · CVE-2023-40834 · published 12 September 2023

CVE-2023-40834: Opencart improper restriction of authentication attempts vulnerability

Opencart · Opencart

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.

9.8 CVSS 3.1 Critical EPSS 1.3% · top 31.0% CWE-307 · Improper restriction of authentication attempts
9.8CVSS 3.1 base score
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://packetstormsecurity.com/files/174525/OpenCart-CMS-4.0.2.2-Brute-Force.html ExploitThird Party AdvisoryVDB Entry
https://www.opencart.com/ Product
https://packetstormsecurity.com/files/174525/OpenCart-CMS-4.0.2.2-Brute-Force.html ExploitThird Party AdvisoryVDB Entry
https://www.opencart.com/ Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2014-3990Opencart xml external entity (xxe) vulnerabilityThe Cart::getProducts method in system/library/cart.php in OpenCart 1.5.6.4 and earlier allows remote attackers to conduct server-side request forger…EPSS 6.6%8.8CVE-2024-58341Opencart sql injection vulnerabilityOpenCart Core 4.0.2.3 contains a SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL co…EPSS 0.34%8.8CVE-2023-47444Opencart code injection vulnerabilityAn issue discovered in OpenCart 4.0.0.0 to 4.0.2.3 allows authenticated backend users having common/security write privilege can write arbitrary untr…EPSS 1.8%8.8CVE-2023-2315Opencart improper input validation vulnerabilityPath Traversal in OpenCart versions 4.0.0.0 to 4.0.2.2 allows an authenticated user with access/modify privilege on the Log component to empty out ar…EPSS 1.0%8.8CVE-2018-13067Opencart cross-site request forgery vulnerability/upload/catalog/controller/account/password.php in OpenCart through 3.0.2.0 has CSRF via the index.php?route=account/password URI to change a user's …EPSS 0.72%8.1CVE-2024-21514Opencart sql injection vulnerabilityThis affects versions of the package opencart/opencart from 0.0.0. An SQL Injection issue was identified in the Divido payment extension for OpenCart…EPSS 19%8.0CVE-2018-11494Opencart path traversal vulnerabilityThe "program extension upload" feature in OpenCart through 3.0.2.0 has a six-step process (upload, install, unzip, move, xml, remove) that allows att…EPSS 2.4%7.5CVE-2010-0956Opencart sql injection vulnerabilitySQL injection vulnerability in index.php in OpenCart 1.3.2 allows remote attackers to execute arbitrary SQL commands via the page parameter.EPSS 1.1%

Source: NIST National Vulnerability Database (record CVE-2023-40834), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.