CVE-2023-33404

Blogengine.Net vulnerability

CVSS

9.8

EPSS

25.8%

EPSS pct

98th

Exploited

No known

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.

Affected vendor

Blogengine

Affected product

Blogengine.Net

CVSS vector

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

Weakness type (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Published

2023-06-26

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 25.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2023-33404

Confirm whether Blogengine Blogengine.Net is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2023-33404.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-33404

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2023-33404 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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