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Public proof of concept

CVE-2023-33404

A public proof of concept exists; no exploitation attested.

  • Published2023-06-26
  • WeaknessCWE-434

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2023-06-2620:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-33404?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-33404?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Blogengine blogengine.net
BranchAffectedFixed in
3.3≤ 3.3.8.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-11-02 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
1 repository, unverifiedhacip/CVE-2023-33404
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2023-06-26
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-8vr7-mc5w-34ff

Frequently asked questions

What is CVE-2023-33404?

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.

Is CVE-2023-33404 actively exploited?

A proof-of-concept exploit exists for CVE-2023-33404, but active exploitation has not been confirmed at this time.

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

CVE-2023-33404 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record