Is CVE-2023-4871 actively exploited?

No active exploitation of CVE-2023-4871 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-4871 be exploited remotely?

Yes. CVE-2023-4871 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-4871?

CVE-2023-4871 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-4871

CWE-89Published: September 10, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A vulnerability classified as critical was found in SourceCodester Contact Manager App 1.0. This vulnerability affects unknown code of the file delete.php. The manipulation of the argument contact/contactName leads to sql injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-239356.

NVD Source

Risk Analysis

A critical SQL injection vulnerability exists in the delete.php file of SourceCodester Contact Manager App 1.0. With a CVSS score of 9.8, this flaw allows remote attackers to execute unauthorized database operations.

Public exploit information is available, but the vulnerability is not in the CISA KEV. It is remotely exploitable.

Recommended Action

Users should update the Contact Manager App to a version that remediates this SQL injection vulnerability.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-4871 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-89): SQL injection vulnerabilities allow attackers to manipulate database queries, potentially exposing or modifying sensitive data.