Is CVE-2023-33404 actively exploited?

No active exploitation of CVE-2023-33404 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-33404 be exploited remotely?

Yes. CVE-2023-33404 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-33404?

CVE-2023-33404 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-33404

CWE-434Published: June 26, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

An Unrestricted Upload vulnerability, due to insufficient validation on UploadControlled.cs file, in BlogEngine.Net version 3.3.8.0 and earlier allows remote attackers to execute remote code.

NVD Source

Risk Analysis

BlogEngine.Net contains an unrestricted file upload vulnerability that allows remote attackers to execute arbitrary code. This critical flaw is remotely exploitable and carries a CVSS score of 9.8.

No public exploit is currently known for this vulnerability, and it is not included in the CISA KEV catalog.

Recommended Action

Upgrade BlogEngine.Net to a version beyond 3.3.8.0 and ensure file upload restrictions are properly configured.

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-2023-33404 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.