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Opencart EUVDEUVD-2021-34812

| CVE-2021-47953 MEDIUM
Cross-Site Request Forgery (CSRF) (CWE-352)
2026-05-10 VulnCheck GHSA-fx8p-6qjq-9xvw
5.3
CVSS 4.0 · Vendor: VulnCheck
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V3 - Web Frontend Security Anti-CSRF tokens, SameSite cookies
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 5.3 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.02%.

Exploit ScenarioDerived

A remote attacker could trick authenticated users into performing unintended actions by sending crafted requests to the affected application.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAI

OpenCart 3.0.3.7 contains a cross-site request forgery vulnerability that allows attackers to change user passwords by sending crafted requests to the account/password endpoint. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement anti-CSRF tokens, validate Origin/Referer headers, use SameSite cookie attribute.

Affected VersionsENISA

Opencart 3.0.3.7

Affected Packages

euvd opencart no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Cross-Site Request Forgery (CSRF) (CWE-352), which allows attackers to trick authenticated users into performing unintended actions. OpenCart 3.0.3.7 contains a cross-site request forgery vulnerability that allows attackers to change user passwords by sending crafted requests to the account/password endpoint. Attackers can trick authenticated users into submitting hidden forms with new password values in the 'password' and 'confirm' parameters to hijack accounts. Affected products include: Opencart.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (VulnCheck) PRIMARY 5.3 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L

Primary rating from Vendor (VulnCheck) · only source for this CVE.

CVSS VectorVendor: VulnCheck

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vulnerable system: Confidentiality
None
Vulnerable system: Integrity
Low
Vulnerable system: Availability
None
Subsequent system: Confidentiality
Low
Subsequent system: Integrity
Low
Subsequent system: Availability
Low

Lifecycle Timeline

2
CVSS changed
May 10, 2026 - 13:22 NVD
4.3 (MEDIUM) 5.3 (MEDIUM)
CVE Published
May 10, 2026 - 12:52 cve.org
MEDIUM 5.3

DescriptionCVE.org

OpenCart 3.0.3.7 contains a cross-site request forgery vulnerability that allows attackers to change user passwords by sending crafted requests to the account/password endpoint. Attackers can trick authenticated users into submitting hidden forms with new password values in the 'password' and 'confirm' parameters to hijack accounts.

Threat Intelligence Overview

EPSS Score
0.0%
Top 94% exploitable
Exploit
POC
Public exploit code exists
Data Quality
6 sources
Confidence: High
EUVD NVD CVE.org EPSS Vulnrichment Exploit-DB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
Poc
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Request Forgery exploits the automatic credential inclusion behavior of web browsers.

CVE-2023-40834 CRITICAL POC
9.8 Sep 12

OpenCart CMS v4.0.2.2 was discovered to lack a protective mechanism on its login page against excessive login attempts,

CVE-2021-47923 CRITICAL POC
9.3 May 10

OpenCart 3.0.3.8 contains a session fixation vulnerability that allows attackers to hijack user sessions by injecting ar

CVE-2024-58341 HIGH POC
8.8 Mar 25

OpenCart Core 4.0.2.3 contains a SQL injection vulnerability that allows unauthenticated attackers to manipulate databas

CVE-2023-47444 HIGH POC
8.8 Nov 15

An issue discovered in OpenCart 4.0.0.0 to 4.0.2.3 allows authenticated backend users having common/security write privi

CVE-2023-2315 HIGH POC
8.8 Sep 27

Path Traversal in OpenCart versions 4.0.0.0 to 4.0.2.2 allows an authenticated user with access/modify privilege on the

CVE-2018-13067 HIGH POC
8.8 Jul 02

/upload/catalog/controller/account/password.php in OpenCart through 3.0.2.0 has CSRF via the index.php?route=account/pas

CVE-2024-21514 HIGH POC
8.1 Jun 22

This affects versions of the package opencart/opencart from 0.0.0. Rated high severity (CVSS 8.1), this vulnerability is

CVE-2018-11494 HIGH POC
8.0 May 26

The "program extension upload" feature in OpenCart through 3.0.2.0 has a six-step process (upload, install, unzip, move,

CVE-2016-10509 HIGH POC
7.2 Aug 31

SQL injection vulnerability in the updateAmazonOrderTracking function in upload/admin/model/openbay/amazon.php in OpenCa

CVE-2024-36694 HIGH POC
7.2 Dec 18

OpenCart 4.0.2.3 is vulnerable to Server-Side Template Injection (SSTI) via the Theme Editor Function. Rated high severi

CVE-2024-21519 HIGH POC
7.2 Jun 22

This affects versions of the package opencart/opencart from 4.0.0.0. Rated high severity (CVSS 7.2), this vulnerability

CVE-2024-21518 HIGH POC
7.2 Jun 22

This affects versions of the package opencart/opencart from 4.0.0.0. Rated high severity (CVSS 7.2), this vulnerability

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