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CVE-2023-33404

38
FAUCET Score

CVE-2023-33404 is a critical unrestricted file upload vulnerability in BlogEngine.Net versions 3.3.8.0 and earlier. This flaw allows remote attackers to upload malicious files without proper validation, leading to potential remote code execution. With a CVSS score of 9.8 (Critical), it is easily exploitable over the network with low attack complexity and no user interaction, resulting in complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, its high EPSS and FAUCET Risk Scores indicate a significant threat that warrants immediate patching.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.3.8.0CPE matchmatch criteria
cpe:2.3:a:blogengine:blogengine.net:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
25.78%
Probability of exploitation in next 30 days
EPSS Percentile
97.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.2578 is in the 95th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / hacip/CVE-2023-33404
ExploitThird Party Advisory