Is there a public PoC exploit available for CVE-2021-47928?

Yes, a public proof-of-concept exploit is available for CVE-2021-47928. Prioritise patching immediately. EPSS: 0.1%.

Extension Tmd Vendor System CVE-2021-47928

Q: What is the CVSS score of CVE-2021-47928?

CVE-2021-47928 has a CVSS 4.0 base score of 8.8 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.1%.

EUVD-2021-34790 HIGH

SQL Injection (CWE-89)

2026-05-10 VulnCheck

GHSA-jrxv-9x2j-97hw

SQLi Extension Tmd Vendor System

8.8

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

CVSS changed

May 10, 2026 - 13:22 NVD

8.2 (HIGH) 8.8 (HIGH)

CVE Published

May 10, 2026 - 12:43 cve.org

HIGH 8.8

DescriptionCVE.org

Opencart TMD Vendor System 3.x contains a blind SQL injection vulnerability that allows unauthenticated attackers to extract database information by injecting SQL code through the product_id parameter. Attackers can craft malicious SQL queries using time-based or content-based blind injection techniques to enumerate usernames, emails, and password reset codes from the oc_user table.

AnalysisAI

Opencart TMD Vendor System 3.x contains a blind SQL injection vulnerability that allows unauthenticated attackers to extract database information by injecting SQL code through the product_id. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as SQL Injection (CWE-89), which allows attackers to execute arbitrary SQL commands against the database. Opencart TMD Vendor System 3.x contains a blind SQL injection vulnerability that allows unauthenticated attackers to extract database information by injecting SQL code through the product_id parameter. Attackers can craft malicious SQL queries using time-based or content-based blind injection techniques to enumerate usernames, emails, and password reset codes from the oc_user table. Affected products include: Opencartextensions Extension Tmd Vendor System.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use parameterized queries/prepared statements. Never concatenate user input into SQL. Apply least-privilege database permissions.