Cyber Resilience

CVE-2021-47928

HighPublic PoC

Published: 10 May 2026

Published
10 May 2026
Modified
12 May 2026
KEV Added
Patch
CVSS Score v4 8.8 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 Score 0.0028 19.4th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2021-47928 is a high-severity SQL Injection (CWE-89) vulnerability in Opencartextensions (inferred from references). Its CVSS base score is 8.8 (High).

Operationally, ranked at the 19.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability details

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…

more

to enumerate usernames, emails, and password reset codes from the oc_user table.

CWE(s)

Related Threats

CVEs Like This One

CVE-2026-26709Shared CWE-89
CVE-2026-24956Shared CWE-89
CVE-2021-47980Shared CWE-89
CVE-2018-25199Shared CWE-89
CVE-2026-27179Shared CWE-89
CVE-2026-33615Shared CWE-89
CVE-2025-0308Shared CWE-89
CVE-2025-28939Shared CWE-89
CVE-2019-25581Shared CWE-89
CVE-2026-27885Shared CWE-89

Affected Assets

Opencartextensions
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-89

Penetration testing uses SQL injection payloads against database interfaces, identifying and supporting fixes for SQL injection weaknesses.

addresses: CWE-89

Validates query inputs to prevent SQL syntax or command manipulation.

References