Is CVE-2021-4290 actively exploited?

No active exploitation of CVE-2021-4290 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-4290 be exploited remotely?

Yes. CVE-2021-4290 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-4290?

CVE-2021-4290 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2021-4290

CWE-89Published: December 27, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A vulnerability was found in DHBW Fallstudie. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file app/config/passport.js of the component Login. The manipulation of the argument id/email leads to sql injection. The name of the patch is 5c13c6a972ef4c07c5f35b417916e0598af9e123. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-216907.

NVD Source

Risk Analysis

A critical SQL injection vulnerability exists in the login component of DHBW Fallstudie. The flaw allows remote, unauthenticated attackers to manipulate database queries, resulting in a CVSS score of 9.8.

No public exploit is known for this vulnerability, and it is not tracked in the KEV database. The flaw is remotely exploitable with low attack complexity.

Recommended Action

Apply the patch identified by 5c13c6a972ef4c07c5f35b417916e0598af9e123 to the affected Fallstudie project.

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-2021-4290 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.