CVE-2021-28423

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

2.58% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 83.8% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-07-01 14:38Z5 YR AGO

Last updated

2025-05-28 22:38Z1 YR AGO

Reserved

2021-03-15

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')Base

Data version

5.1

Document digest

38c263852abea568744c4225983882257184db91634a6a7b7e300ce81984614b

• phpgurukul.comhttps://phpgurukul.com/teachers-record-management-system-using-php-and-mysql/
• nhattruong.bloghttps://nhattruong.blog/2021/05/22/cve-2021-28423-teachers-record-management-system-1-0-searchdata-error-based-sql-injection-authenticated/
• www.exploit-db.comhttps://www.exploit-db.com/exploits/50018
• packetstormsecurity.comhttps://packetstormsecurity.com/files/163172/Teachers-Record-Management-System-1.0-SQL-Injection.html